Chrome Enterprise Premium MCP Server

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Server Quality Checklist

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Latest release: v1.9.0
Disambiguation4/5
Most tools have clear, distinct purposes (auth, DLP rules, detectors, browser management). However, there is slight overlap between some diagnostic tools (diagnose_environment, security_insights) and multiple DLP-related tools (create_chrome_dlp_rule, create_default_dlp_rules, list_dlp_rules, get_dlp_rule) could confuse an agent, though descriptions help differentiate.
Naming Consistency5/5
All tools follow a consistent verb_noun pattern (e.g., check_cep_subscription, create_chrome_dlp_rule, list_dlp_rules). Even auth tools use cep_auth as a prefix. No mixing of camelCase or other conventions, making it predictable for an agent.
Tool Count4/5
With 25 tools, the server is slightly above the ideal range (3-15). While all tools serve a purpose in Chrome Enterprise Premium management, the count feels a bit heavy, especially with many DLP and detector tools. Still, it remains manageable and not overly bloated.
Completeness3/5
The tool surface covers core operations like listing, creating, and checking licenses, but there are notable gaps: no tools to update or delete DLP rules, and no OU management beyond listing. Agents will hit dead ends when trying to modify or remove existing configurations.
Average 4.1/5 across 25 of 25 tools scored. Lowest: 3.1/5.
See the Tool Scores section below for per-tool breakdowns.
- 3 of 4 community issues answered or closed in the last 6 months
- 66 commits in the last 12 weeks
- Last stable release on July 28, 2026
- No critical vulnerability alerts
- No high-severity vulnerability alerts
- No code scanning findings
- CI is passing
This repository is licensed under Apache 2.0.
This repository includes a README.md file.
No tool usage detected in the last 30 days. Usage tracking helps demonstrate server value.
Tip: use the "Try in Browser" feature on the server page to seed initial usage.
Add a glama.json file to provide metadata about your server.
If you are the author, simply .
If the server belongs to an organization, first add glama.json to the root of your repository:
```
{
  "$schema": "https://glama.ai/mcp/schemas/server.json",
  "maintainers": [
    "your-github-username"
  ]
}
```
Then . Browse examples.
Add related servers to improve discoverability.

How to sync the server with GitHub?

Servers are automatically synced at least once per day, but you can also sync manually at any time to instantly update the server profile.

To manually sync the server, click the "Sync Server" button in the MCP server admin interface.

How is the quality score calculated?

The overall quality score combines two components: Tool Definition Quality (70%) and Server Coherence (30%).

Tool Definition Quality measures how well each tool describes itself to AI agents. Every tool is scored 1–5 across six dimensions: Purpose Clarity (25%), Usage Guidelines (20%), Behavioral Transparency (20%), Parameter Semantics (15%), Conciseness & Structure (10%), and Contextual Completeness (10%). The server-level definition quality score is calculated as 60% mean TDQS + 40% minimum TDQS, so a single poorly described tool pulls the score down.

Server Coherence evaluates how well the tools work together as a set, scoring four dimensions equally: Disambiguation (can agents tell tools apart?), Naming Consistency, Tool Count Appropriateness, and Completeness (are there gaps in the tool surface?).

Tiers are derived from the overall score: A (≥3.5), B (≥3.0), C (≥2.0), D (≥1.0), F (<1.0). B and above is considered passing.

Tool Scores

Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions that the tool returns details like OS version and user email, but does not specify whether the operation is read-only, if authentication is required, or if there are any rate limits or pagination. This is insufficient for a tool with no annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences, front-loaded with the core action, and contains no redundant information. Every word serves a purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description covers the basic purpose and output details. However, it does not address prerequisites like authentication (given sibling auth tools) or whether the customerId is required or optional. The output schema exists but is not fully described. Overall, it is adequate but could be more complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with a clear description of the customerId parameter. The description adds minimal extra meaning beyond 'for the customer', which is already implied by the parameter. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action 'Lists Chrome browser profiles for the customer' and specifies the resource. It distinguishes from siblings like list_detectors or list_org_units by naming the specific resource type. However, it does not explicitly differentiate from other list tools, but the resource is unique enough.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is given about when to use this tool versus alternatives, such as when authentication is needed via cep_auth or when to use other list tools. The description only states what the tool does, without any context for selection.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It states 'force-installs' but doesn't disclose behavioral traits such as permission requirements, reversibility, side effects, or what happens if the extension is already installed. For a force-install action, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences with no wasted words. The main action is front-loaded, and the additional sentence adds important context about why the extension is needed. Very concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness2/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the complexity of a force-install operation and the presence of an output schema, the description is incomplete. It doesn't mention what the output provides, post-conditions, or relationship to sibling tools like 'check_cep_subscription'. Behavioral transparency is also lacking, reducing completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so parameters are already documented. The description adds no additional meaning beyond the schema. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Force-installs the Secure Enterprise Browser (SEB) extension for a given Organizational Unit.' The verb 'force-installs' and resource 'SEB extension' are specific, and it distinguishes from siblings like 'check_seb_extension_status' which is a check operation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives, when not to use it, or any prerequisites. For example, it doesn't mention that a subscription or license check might be needed first.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden. It discloses the mutation (creates) and lists rules, but does not explain idempotency, whether rules are appended or replaced, or required permissions. This leaves significant behavioral ambiguity.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise, using a bullet list for the included rules. It front-loads the core purpose and is easy to parse. Minor room for improvement by removing redundant phrasing.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the presence of an output schema and two parameters, the description covers the primary purpose and rules. However, it omits details like expected output format, behavior on re-run, and prerequisite customerId, making it slightly incomplete for a mutation tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with parameter descriptions. The description adds context about the rules created but does not clarify parameter-specific meaning beyond what the schema already provides. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool creates a 'Starter Pack' of default Chrome DLP rules for a specific Organizational Unit, listing the three specific rules included. This distinguishes it from siblings like create_chrome_dlp_rule which creates individual rules.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains what rules are created but does not explicitly state when to use this tool versus alternatives like create_chrome_dlp_rule for single rules or list_dlp_rules for reviewing. Usage context is implied but not explicit.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, and the description does not disclose whether the tool is read-only or has side effects. It only describes the purpose without behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with two sentences, no redundant information, and directly conveys the tool's purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the simple parameter and presence of an output schema, the description is mostly complete. Missing behavioral transparency is a minor gap for a verification tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 100% schema description coverage, the baseline score is 3. The description does not add extra meaning beyond the schema's parameter documentation.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('verifies') and the resource ('Chrome Enterprise Premium license assignments'), and it distinguishes itself from sibling tools like 'check_user_cep_license' by focusing on organization-wide verification.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies use for checking protection state, but it does not explicitly state when to avoid using it or compare to similar tools like check_user_cep_license.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so the description must carry full load. It implies a read-only check, but does not disclose error handling (e.g., if user not found) or authentication requirements. For a simple check, it is minimally adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two concise sentences with no wasted words. The first sentence states the purpose, the second gives usage guidance. Highly efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple single-parameter tool with an output schema (not shown but indicated), the description covers purpose, usage, and parameter. It lacks mention of edge cases or return format, but output schema fills that gap. Slightly incomplete for a fully self-contained description.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The single parameter 'userId' has a schema description that matches the tool description's mention of 'email or unique ID'. With 100% schema coverage, the description adds no meaningful new semantics; baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool checks if a user has a CEP license, using a specific verb and resource. While it doesn't explicitly differentiate from siblings like 'check_cep_subscription', the purpose is unambiguous and well-defined.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly says 'Use this to verify if an individual user (by email or unique ID) is licensed', providing clear context. However, it does not mention when not to use it or suggest alternatives like 'check_cep_subscription' for subscription-level checks.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It does not disclose any behavioral traits such as idempotency, side effects, permissions required, rate limits, or error behaviors. The read-only nature is implied but not explicitly stated.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness2/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely long due to the full knowledge index table. While the table is informative, it significantly reduces conciseness. The first paragraph is efficiently front-loaded, but the bulk of the description is a large table that could be a separate resource.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description is comprehensive: it explains the input format, includes a detailed index of available documents (with topics and keywords), and references cross-links. Since an output schema exists, return value explanation is not needed. This provides the agent with all necessary context to select and invoke the tool correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema already provides a description of the 'filename' parameter. The description adds value by explaining that entries can be numeric articleIds from cross-links, which is not in the schema's description. Schema coverage is 100%, so the description enhances understanding.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action ('Retrieves the full text') and the resource ('knowledge base documents'). It explains the two input forms (single string or array) and distinguishes from sibling tools like get_dlp_rule by focusing exclusively on knowledge base content.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides guidance on when to use the array form ('load related articles in a single call') and includes a comprehensive knowledge index table that helps the agent decide which documents to fetch. However, it does not explicitly state when not to use the tool or mention alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description bears full responsibility for behavioral disclosure. It indicates the tool can modify state (enable/disable) but does not disclose potential impacts (e.g., disabling affects all users), required permissions, or any side effects. The description is minimal and lacks depth needed for safe invocation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description consists of two concise sentences. The first sentence states the purpose, and the second provides usage guidance. There is no redundant or extraneous information, making it efficient and easy to parse.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The tool has low complexity with three parameters, and the output schema exists (though not shown). The description covers the core actions and scope. It does not explain the result of 'check' or the applicability of 'targetOus', but those are documented in the schema. Overall, it is adequate given the schema coverage and output schema presence, missing only minor contextual details.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so all three parameters are already described in the schema. The tool description merely reiterates the actions without adding new meaning, such as examples, formatting, or behavior nuances. Since coverage is high, the baseline score is 3; the description adds no extra value.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb 'Manages' and the resource 'enablement status of Chrome Security Insights'. It explicitly lists the specific actions (check, enable, disable) and implies customer-wide scope. The tool name and description distinguish it from siblings, which focus on other Chrome Enterprise features like CEP, DLP, and connectors.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explicitly states when to use this tool: 'Use this to check, enable, or disable the security insights feature customer-wide.' It provides clear context but does not explicitly mention when not to use it or suggest alternative tools. However, given the sibling tools are for different features, the intended usage is unambiguous.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It describes a read-only check but does not disclose details like whether it returns only boolean or additional info, or any permissions needed. Still, it adequately implies a safe inspection operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences with zero redundancy. The first sentence clearly states the primary action, the second adds crucial context and next step. Perfectly front-loaded and efficient.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the presence of an output schema (not shown but reported), the description need not explain return values. It provides purpose, usage context, and a link to a sibling. A slight gap: no mention of error conditions or whether the check is synchronous, but overall sufficient for a simple check tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Input schema has 100% coverage, so baseline is 3. The description adds minimal value beyond the schema by mentioning 'organizational unit', which maps to 'orgUnitId', but does not elaborate on 'customerId'. No significant enhancement over schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
Clearly states the tool checks if the SEB extension is force-installed for an organizational unit. The verb 'Checks' plus specific resource ('SEB extension status for given OU') makes the purpose unambiguous and distinguishes it from sibling 'install_seb_extension'.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides context that SEB is required for advanced features and directs to use 'install_seb_extension' if not installed. This gives a clear recommendation on when to use this tool versus the sibling. However, it does not explicitly state when not to use or compare to other related tools like 'diagnose_environment'.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Description only states 'Counts' and reporting purpose. With no annotations, it does not disclose authorization needs, rate limits, or behavior on no results. However, the operation is a simple read, so minimal disclosure is acceptable.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences with no redundancy. Front-loaded with action verb. Every word contributes to purpose and usage.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given only two optional parameters and existence of output schema, description adequately covers context. No missing information for this simple counting tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema covers 100% of parameters with descriptions. Description adds no extra meaning beyond what schema provides, resulting in baseline score.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states it counts Chrome browser versions reported by managed devices. Verb 'counts' and resource 'Chrome browser versions' are specific. No sibling tool performs similar counting, so differentiation is inherent.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly mentions use for auditing and reporting on distribution across organization or specific OU. Provides clear context but lacks explicit when-not-to-use or alternatives, though none are present.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses the creation action and the need to use the detector in a rule, but does not mention side effects, permissions, idempotency, or error conditions. This is adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, no extraneous words. The purpose is front-loaded and every sentence earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (4 parameters, output schema exists), the description is complete enough: it explains what the tool does, how the object is used, and the schema covers parameters. Missing a brief note on output or return value, but output schema presumably covers that.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the baseline is 3. The description adds value by explaining that 'expression' is a regular expression and that the detector is used later, but it does not add parameter-specific details beyond what the schema already provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb ('Creates'), the resource ('DLP regular expression detector'), and distinguishes from sibling tools like create_url_list_detector and create_word_list_detector by specifying 'regular expression'.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
It explains that detectors are building blocks for DLP rules and that after creation you must reference the resource name in a rule condition. This provides clear context, though it does not explicitly state when not to use this tool versus alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses that the tool creates a detector and that the result is used in a rule condition. However, with no annotations, it lacks details about side effects, authorization requirements, or return value (though output schema exists). The behavioral information is adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences, front-loaded with purpose and immediate usage context. Every sentence adds value; there is no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool complexity (creation, part of workflow, output schema exists), the description covers the essential workflow linkage. It could mention the return value or permissible operations, but it is largely complete for an experienced agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with each parameter described in the schema. The description adds no additional parameter semantics beyond the schema. Baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description explicitly states 'Creates a new DLP URL list detector', using a specific verb and resource. It distinguishes from sibling detectors (create_regex_detector, create_word_list_detector) by the 'URL list' qualifier.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains that detectors are building blocks for DLP rules and that after creation the resource name must be referenced in 'create_chrome_dlp_rule'. This provides clear context for when to use the tool, but it does not explicitly compare against regex or word list detectors.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description must disclose behavior. It mentions the resource name usage but not side effects, auth needs, rate limits, or constraints beyond schema. Schema has max items and char count but description does not highlight them. Adequate but not comprehensive.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences: first states action, second explains next step. No redundancy, front-loaded, every word adds value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given output schema exists and schema covers all parameters, the description adequately explains purpose and follow-up. Could include more about error scenarios or duplicates, but overall sufficient.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. Description does not add specific parameter details beyond schema, but the context of using the returned resource name indirectly adds value. No param-specific elaboration.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
Describes creating a DLP word list detector, a specific building block for rules. Distinguishes from siblings like create_regex_detector and create_url_list_detector by naming the type ('word list').
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Advises that after creating, the resource name must be referenced in create_chrome_dlp_rule. Does not explicitly state when to use this vs alternatives, but the context implies word list need. Could improve by mentioning alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description carries full burden. It describes what is retrieved but does not disclose potential behavioral traits such as pagination, rate limits, or required permissions. Since output schema exists, response structure is documented, but behavioral aspects beyond that are lacking.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, front-loaded with main action, no wasted words. Perfectly concise while still providing examples and usage guidance.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 6 parameters all documented in schema and an output schema available, the description covers purpose and usage adequately. Missing some context about default behaviors (e.g., startTime defaults) but those are in schema. Overall complete for a tool with rich structured metadata.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline 3 applies. Description does not add extra meaning to individual parameters beyond what schema already provides. It offers general context but no additional semantic guidance.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states the tool retrieves audit logs of Chrome browser activity with specific examples like login events, policy violations, extension installs. Differentiates from sibling tools like DLP rule management or authentication by specifying use for security investigations and DLP tuning.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly says 'Use this for security investigations, auditing user actions, and to help tune DLP rules,' providing clear context. Does not mention when not to use or list alternative tools, but the context is sufficient for most cases.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided; description carries burden. Mentions output provides path and unique ID, but does not disclose other traits like auth needs or rate limits. Adequate given simplicity.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Three front-loaded sentences with no waste. First sentence states action, rest provide context. Highly concise.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple list tool with one parameter, full schema coverage, and output schema, the description covers purpose, usage, and output format adequately. Complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% for single parameter. Description does not add parameter details beyond schema, so baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states tool lists OUs for the customer. Specifies the purpose: to find 'orgUnitId' needed by other tools. Differentiates from siblings implicitly by focusing on OUs.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly says to use this tool to find orgUnitId required by other tools. Provides clear context for when to use. Lacks explicit exclusions or alternatives, but sufficient.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so the description must carry the full burden. It reports 'status and cached scopes' but doesn't mention side effects (presumably none), permissions, or output details. With annotations like readOnlyHint absent, a score of 3 is reasonable as it's adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two concise sentences front-load the purpose and usage guidance. No unnecessary words, every sentence earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a zero-parameter status tool with an output schema, the description adequately covers what it does and when to use it. Minor gap: no mention of whether it's read-only, but the output schema likely fills in return values.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has zero parameters and 100% coverage, so the baseline is 4. The description adds no parameter info, which is acceptable since none exist.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool reports 'current OAuth credential status and cached scopes' for the CEP MCP server, with a specific verb and resource. It also distinguishes from the Google Workspace MCP server's status tool, though not from sibling tools like cep_auth.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides explicit guidance to use only for the CEP MCP server and mentions the Workspace server has its own tool. It doesn't address when to use cep_auth or cep_auth_clear, but those are for different actions (authentication) rather than status checking.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior3/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description carries full burden. It indicates a read-only list operation and adds context about detectors' purpose, but does not disclose potential limitations like pagination, permissions, or response size. Acceptable for a simple list tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences: first defines scope and types, second gives practical usage. No wasted words, front-loaded with core purpose.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given zero parameters and presence of output schema (unshown but noted), description covers purpose, types, and real-world usage. Could mention if all detectors are returned or if there is pagination, but sufficient for most cases.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
No parameters exist, so 100% schema coverage by default. The description does not need to add parameter semantics. Baseline score of 4 for zero-parameter tools is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
Describes exactly what the tool does: lists custom Chrome DLP detectors with specific types (URL lists, word lists, regex). Verb 'lists' plus resource 'detectors' is clear. Distinguishes from create/update siblings.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly states use case: find 'policyName' to include in a rule. Does not mention when not to use or alternatives, but the sibling tools list makes the differentiation clear.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full burden. It discloses the response includes an Admin Console link and that the agent cannot modify/delete rules, adding useful context beyond a simple retrieve.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences plus parameter description, no wasted words. Information is front-loaded and to the point.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple read tool with an output schema, the description sufficiently explains behavior, response content, and limitations. No gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% and the parameter description in the schema already matches the tool description's example. The description adds no new meaning beyond what the schema provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states it retrieves details for a specific Chrome DLP rule by resource name, distinguishing it from list_dlp_rules which lists all rules.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies when to use (having a resource name for a specific rule), but does not explicitly exclude alternatives like list_dlp_rules for bulk queries. Still, it's clear enough for an agent.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Without annotations, the description explains the purpose (list all rules) and the type of data protected, but does not mention read-only nature, pagination, or limits. However, it is a simple read operation with no side effects, so transparency is adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences efficiently deliver the purpose and context without extraneous information. Every sentence adds value.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no parameters and an output schema present, the description fully explains the tool's function and the domain (DPR rules, browser actions). No gaps remain.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
There are zero parameters, and schema coverage is 100%. The description does not add parameter-specific meaning, but the baseline for 0 params is 4, and the tool is straightforward.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states 'Lists all Chrome DLP rules' with a specific verb and resource, distinguishing it from siblings like create_chrome_dlp_rule (creation) and get_dlp_rule (likely single rule retrieval).
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines3/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for viewing all rules but provides no explicit guidance on when to use this tool versus alternatives like get_dlp_rule or search tools. No context on exclusions or prerequisites.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior5/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description fully carries the burden. Discloses critical behavioral constraints: forbidden combos, display name prefix, trigger-specific parameter support, and need for reference document. Exceeds expectations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Tool description is 3 concise sentences, front-loaded with purpose and usage constraints. Parameter descriptions in schema are verbose but necessary for documenting constraints. No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Covers safety, constraints, prerequisites. Output schema exists (though not shown) so return info not needed. Could mention idempotency or error handling, but overall complete for a creation tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters5/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, but description adds significant value: cross-parameter compatibility (e.g., dataMasking only with URL_NAVIGATION and WARN/AUDIT), blockScreenshot constraints, customMessage limitations. These are not in the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
Clearly states it creates a Chrome DLP rule for an OU. Verb 'creates' and resource 'Chrome DLP rule' are specific. Distinguishes from sibling tools like get_dlp_rule or list_dlp_rules, but could explicitly differentiate from create_default_dlp_rules.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Provides explicit safety restrictions (no ACTIVE+BLOCK) and alternatives ('use INACTIVE BLOCK or ACTIVE WARN/AUDIT'). Advises to consult get_document for technical reference. Lacks direct comparison to other create tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It discloses default behavior (summary without large arrays), pagination details, drill-down capabilities, and auto-resolution of customerId. It does not explicitly state read-only nature, but the health check context implies it. Overall, transparent and sufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise and well-structured. Three short paragraphs front-load the purpose, then detail the default behavior, drill-down options, and pagination. Every sentence earns its place with no redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (duel mode, pagination, auto-resolve), 100% schema coverage, and the presence of an output schema, the description provides all necessary information. It covers usage, parameters, and output expectations without significant gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so baseline is 3. The description adds meaningful context beyond schema: for 'section', it explains what each value returns (e.g., DLP rules with action types, browser version counts); for 'limit' and 'offset', it clarifies pagination usage; for 'customerId', it confirms auto-resolution. This adds value.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool runs a health check of the Chrome Enterprise Premium environment, distinguishing it from sibling tools that focus on specific sub-resources (e.g., list_dlp_rules, list_org_units). It explains the dual behavior (summary vs. detail) and explicitly lists drill-down sections.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description advises using the tool for a high-level summary by default, and to drill into specific sections via the 'section' parameter. It implies alternatives exist (the dedicated list tools) but does not explicitly say when not to use this tool. The agent guidance to present findings to the user is helpful.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Discloses key behavioral trait: only modifies connectors not already configured. However, with no annotations, could mention whether changes are reversible or require specific auth. Still adds significant value.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Three sentences with front-loaded purpose and no unnecessary words. Efficient and clear.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity and existence of output schema, description covers purpose, behavior, and alternative. No gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% so parameters are well-documented. Description adds no extra meaning beyond listing example connectors, meeting baseline of 3.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
Clearly states the tool enables and configures Chrome Enterprise connectors, listing examples and contrasting with sibling tool get_connector_policy for status checking.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines5/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly says when to use (ACTIVATE security protections) and what it does not do (only applies to unconfigured connectors). Provides alternative tool for non-modifying check.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It states the tool retrieves an ID, implying read-only behavior. It does not discuss authentication details or errors, but for a simple retrieval tool, the description is adequately transparent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences with no wasted words. It front-loads the core action and adds valuable context about the ID's format and necessity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (0 parameters) and the presence of an output schema, the description is complete. It tells what the tool does and why it's needed, leaving no obvious gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has zero parameters, so the description adds no parameter info. According to guidelines, 0 parameters means baseline 4, which is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool retrieves the unique Google customer ID for the authenticated account, including its format ('C' prefix) and purpose (required for other tools). This distinguishes it implicitly from sibling tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines4/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description explains that the ID is required for many other Chrome management tools, giving clear context for when to use this tool. It does not explicitly state when not to use it, but the context is sufficient.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It clearly indicates the tool is read-only (retrieves configuration) and provides context on what is retrieved. It does not explicitly mention side effects, but retrieval operations typically have none. The note about the enable tool adds behavioral context. A score of 4 reflects slight room for improvement (e.g., stating 'This tool does not change any settings').
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with three sentences: first states the action, second gives use cases, third (note) provides important constraints and alternatives. Every sentence adds value, and the critical information is front-loaded. No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (3 params, 1 required, output schema exists), the description covers the main purpose and usage context. It mentions the connection to the enable tool and manual updates for modifications. However, it does not describe the output format or any error conditions, though the output schema covers return values. Slightly more context on expected response would round it out.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage for all three parameters. The tool description adds value by explaining the purpose of retrieving connectors and giving examples of features like 'printing sensitive data' and 'real-time URL checks'. It clarifies that 'ALL' retrieves all connectors in one call, which is not obvious from enum values alone. This adds semantic meaning beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool retrieves current configuration for a specific or all Chrome Enterprise connectors. It explicitly lists use cases (audit/verify) and the domain of features (printing sensitive data, real-time URL checks, event reporting). This effectively distinguishes it from sibling tools that create rules or enable connectors.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines5/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides explicit guidance: use for auditing/verifying settings, notes that the 'enable_chrome_enterprise_connectors' sibling tool only activates unconfigured connectors, and clarifies that there is no tool for modifying already configured connectors (must be updated manually). This covers when to use, when not to use, and alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Discloses that it clears cached credentials and forces re-authentication. No annotations exist, so the description carries full burden. Slightly less transparent about potential side effects, but adequate for the tool's simplicity.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, each adding value. Front-loaded with the main action, then context about usage scope.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Fully sufficient for a zero-parameter tool with clear purpose and usage guidelines. No missing information.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
No parameters exist, so no additional semantic value needed. Baseline 4 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action (clears cached OAuth credentials), the resource (CEP MCP server), and distinguishes from the sibling workspace tool, making the purpose unambiguous.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines5/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
Explicitly says to use only for CEP MCP server and mentions the alternative for Google Workspace, providing clear when-to-use and when-not-to-use guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Behavior5/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It discloses that the tool opens a browser tab, requires user interaction, and outlines the entire auth flow including the redirect URL step. It also lists the requested scopes. This is transparent for an auth tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a bit lengthy (6 sentences) but each sentence serves a purpose given the complexity of the auth flow. It is front-loaded with the main purpose, then instructions. Could be slightly more concise but appropriately structured.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness5/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description covers all necessary context: what the tool does, prerequisites (warn user), scopes, how to handle different scenarios (initial call vs. redirect), and exclusion of sibling tool. The output schema exists, so return values are not needed. The description is complete for this tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters4/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, and the schema already has descriptions for both parameters. The description adds value by explaining the overall flow and how the parameters fit (e.g., 'Omit to start a fresh sign-in'). It goes beyond mere schema details but the schema already does a good job.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Sign in to Google for the Chrome Enterprise Premium (CEP) MCP server.' It uses a specific verb ('sign in') and resource ('CEP MCP server'), and distinguishes from the sibling auth tool for Google Workspace MCP server.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines5/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides explicit usage guidelines: warn user, ask confirmation before calling, use only for CEP MCP (not for Google Workspace MCP), call with no arguments to start, and call with redirectUrl after user provides the URL. This covers when and how to use the tool.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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