Datadog MCP Server

Server Quality Checklist

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Latest release: v1.0.11
Disambiguation5/5
Each tool targets a distinct Datadog domain (e.g., dashboards, monitors, logs, metrics) with clear description boundaries. Overlaps are minimal and intentional (e.g., events vs monitors for alert data), with descriptions providing enough detail to disambiguate.
Naming Consistency5/5
All tool names are lowercase, single-word nouns (e.g., dashboards, downtimes, logs_archives) with no mixing of verb_noun or camelCase. The naming is uniform and predictable across the entire set.
Tool Count4/5
23 tools is slightly above the typical 3-15 ideal range, but for a comprehensive monitoring platform like Datadog, each tool corresponds to a major functional area and contributes meaningful value. No tool feels extraneous.
Completeness4/5
The tool surface covers nearly all major Datadog features (auth, dashboards, monitors, logs, metrics, APM, RUM, security, etc.). Minor omissions like network performance monitoring or service maps exist, but core workflows are well-supported.
Average 4/5 across 23 of 23 tools scored. Lowest: 3.2/5.
See the Tool Scores section below for per-tool breakdowns.
- No community issues in the last 6 months
- 1 commit in the last 12 weeks
- Last stable release on June 29, 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.
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```
{
  "$schema": "https://glama.ai/mcp/schemas/server.json",
  "maintainers": [
    "your-github-username"
  ]
}
```
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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 must convey behavioral traits. It only says 'Query', implying read-only, but doesn't confirm mutability, rate limits, or permissions. The description is insufficient for a tool with multiple actions.
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?
Description is concise (two sentences) and front-loads the core purpose. However, it could better organize the action list and use cases for faster parsing.
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?
Lacks details on return values, pagination behavior, or required permissions. Given no output schema, the description should provide more context for an agent to correctly interpret results.
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 parameters are well-documented in the schema. The description does not add extra meaning beyond what the schema already provides, meeting the baseline but not exceeding.
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?
Description clearly states it queries Datadog Security Monitoring and lists three specific actions (rules, signals, findings), distinguishing it from sibling tools that focus on other areas like logs or metrics.
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?
Provides use cases (threat detection, compliance, etc.) but no explicit guidance on when not to use this tool or how it compares to alternatives like 'logs' or 'monitors'.
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 must fully disclose behavioral traits. It mentions that responses include a 'url' field and lists SLO types, but lacks details on destructive actions (e.g., delete irreversibility), permissions, or rate limits. This is insufficient for a tool with create/update/delete actions.
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 (two sentences) and front-loaded with key actions and types. Every sentence contributes meaningful information, making it efficient for the agent to parse.
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 absence of an output schema and the complexity of 9 parameters, the description covers basic functionality (actions, types, URL field) but lacks details on error handling, idempotency, or partial update behavior. It is adequate but not fully comprehensive for a multi-action 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 description coverage is 100%, so the schema already documents all parameters. The description adds marginal value by noting that list includes SLI status and error budget, but does not significantly enhance understanding beyond the schema. Baseline score of 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 manages SLOs and lists specific actions (list, get, create, etc.) and SLO types. It distinguishes the tool within the broader Datadog domain, but does not explicitly differentiate from sibling tools beyond the subject matter.
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 provides use cases like 'reliability tracking, error budgets, SLA compliance, performance targets,' giving context. However, it does not specify when to avoid using this tool or mention alternative tools for similar tasks, leaving the agent without clear guidance on selection.
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 must disclose behavior. It indicates only read actions (list, get), implying non-destructive use. However, it does not detail authentication requirements, rate limits, or output format. The description 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.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two sentences and front-loads the key purpose. It is concise, though the second sentence could be more tightly integrated. No unnecessary words, but minor redundancy.
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?
No output schema is provided, and the description does not explain the return format, making it less complete for an agent. Pagination parameters exist but are not contextualized. For a read-only tool with pagination, additional details about default page size or output structure would improve 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 description coverage is 100%, so the schema already explains all parameters. The description adds no new semantic detail beyond restating the action options. It meets the baseline but provides no extra value.
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 manages Datadog users and lists specific actions (list and get). It differentiates from siblings like 'auth' (authentication) and 'teams' (team management), though not explicitly stating alternatives. The verb 'Manage' is somewhat broad given only read actions are available, but the action list clarifies.
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 suggests use cases ('access management, user auditing, team organization') but does not explicitly state when to use this tool versus alternatives like 'teams'. No when-not-to-use guidance is provided, but the use cases imply appropriate contexts.
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 behavioral traits such as idempotency, authorization requirements, rate limits, or side effects of create/update/delete actions. The description only lists actions without further detail.
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 (two sentences) and front-loaded with actions. Every sentence adds value: first sentence lists actions, second provides use cases. No redundant information.
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?
The tool has 12 parameters including nested objects and no output schema. The description does not explain return values, pagination behavior, or action-specific details (e.g., required parameters per action). It is too brief for such a complex 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?
The input schema provides descriptions for all 12 parameters (100% coverage). The tool description adds no additional parameter-level meaning beyond the schema, so it meets the baseline for high coverage.
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 manages Datadog Notebooks and lists specific actions (list, get, create, update, delete). It also provides example use cases (runbooks, incident documentation, investigation notes, dashboards as code), which differentiates it from sibling tools that manage other resources.
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 mentions use cases but does not explicitly state when to avoid using the tool or compare it to alternatives. Given the sibling tools (e.g., dashboards) manage similar resources, the lack of exclusion guidance leaves room for ambiguity.
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 only lists read-like actions (list, get, members) without explicitly stating that the tool performs only read operations or disclosing any behavioral traits like authorization requirements, rate limits, or side effects.
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 extremely concise, consisting of two sentences that front-load the action list and usage context with no unnecessary words.
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 tool has 5 parameters and no output schema, the description provides adequate high-level information but lacks details about return format, pagination behavior, or how errors are handled. It is minimally complete for basic use.
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 has 100% coverage, so the baseline is 3. The description adds value by grouping parameters to actions (e.g., 'list (with filters)', 'get (by ID)'), which helps the agent understand which parameters apply to each action.
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 manages Datadog teams and enumerates three actions (list, get, members). It is specific enough to distinguish from sibling tools like 'users' or 'dashboards', but does not explicitly state that it does not support create/update/delete operations.
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 provides usage context ('Use for: team organization, access management, collaboration') but does not specify when not to use the tool or mention alternative tools for other team management operations.
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 of disclosure. It lists actions but does not explain side effects, permissions required, rate limits, or what happens when muting/unmuting. For a tool with destructive actions (mute), more behavioral context is needed.
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 extremely concise: two sentences that front-load the purpose and actions, with no filler. Every word contributes value.
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 tool's complexity (10 parameters, multiple actions, no output schema), the description is incomplete. It does not explain return values for each action, pagination details for 'list', or the effect of mute/unmute. More details are needed for an AI to use it correctly.
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 clear parameter descriptions, so baseline is 3. The description does not add meaning beyond the schema; it only reiterates actions. Thus, no additional credit is warranted.
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-resource combination ('Manage Datadog infrastructure hosts') and enumerates specific actions (list, totals, mute, unmute) with brief explanations. It also provides use cases, effectively distinguishing this tool from sibling tools like monitors or events.
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 gives explicit use cases ('infrastructure inventory, host health, silencing noisy hosts during maintenance'), providing clear guidance on when to use the tool. However, it does not mention when not to use it or suggest alternatives, which would improve it.
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 must carry the full burden. It only states that actions exist but does not disclose behavioral traits such as side effects, idempotency, permissions, or what happens on create/update/delete. The lack of detail leaves significant ambiguity for the agent.
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 extremely concise: two sentences that state purpose and list actions/use cases. It has no wasted words and is front-loaded with the core verb (Manage) and resource (incidents).
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 6 parameters including a nested object (config) and no output schema, the description is too high-level. It does not explain how actions interact with parameters, required fields for create, or return values, leaving the agent with insufficient context to use the tool correctly.
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 clear parameter descriptions, so the description adds no additional meaning beyond the schema. The baseline of 3 applies because the description merely lists action types without enriching parameter semantics.
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 manages Datadog incidents for incident response and lists specific actions (list, get, search, create, update, delete). It also provides use cases like incident management and on-call response. This distinguishes it from sibling tools that handle other Datadog resources.
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 gives explicit use cases (incident management, on-call response, postmortems, tracking MTTR/MTTD), helping an agent understand when to use this tool. However, it does not explicitly state when not to use it or mention alternatives among sibling tools.
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 burden. It discloses that mutations are blocked in read-only mode and that credential fields are forwarded unchanged. However, it lacks details on destructive behavior, authorization needs, idempotency, or error handling for a tool with multiple mutating actions.
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: it opens with the overall purpose, enumerates actions and destination types, and ends with the read-only constraint. Every sentence provides necessary information without redundancy.
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?
For a multi-action tool with no output schema, the description fails to explain return values for actions like list or create (e.g., what the response contains, pagination, error codes). The verbose parameter hint is insufficient. This leaves agents uncertain about expected output.
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 context about destination types and credential forwarding, but the schema already provides similar information. No additional meaning beyond the schema is introduced.
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 manages Datadog logs archives for long-term retention to cloud storage (S3, GCS, Azure Blob). It lists all supported actions (list, get, create, update, delete, reorder, get_order) and destination types, distinguishing it from sibling tools like logs, logs_indexes, etc.
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 managing log archives by listing actions and configuration requirements, but it does not explicitly state when to use this tool versus alternatives (e.g., indexes or pipelines) or provide caveats like prerequisites or system constraints.
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 provided, and the description only lists actions without disclosing behavioral traits such as destructiveness of delete/update, rate limits, or side effects. The agent is left to infer behavior from action names alone, which 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.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise with one sentence and a list of use cases. Every part contributes value, though the list could be integrated into a more structured format. No redundancy.
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 8 parameters, no output schema, and moderate complexity, the description covers purpose and use cases but lacks behavioral details and return value information. It is adequate but leaves gaps for an agent to function optimally.
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 having a description. The description adds no additional meaning beyond the schema, so 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?
Clearly states it manages Datadog Synthetic tests, listing all supported actions and specific use cases like uptime monitoring and canary deployments. This differentiates it from sibling tools like monitors or dashboards by focusing on synthetic tests.
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 cases (uptime monitoring, API testing, etc.), giving clear context for when to use this tool. However, it does not provide when-not-to-use guidance or explicitly compare with alternatives, but the listed use cases are sufficient.
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 behavioral traits such as authentication requirements, rate limits, or side effects. It only indicates read-only query behavior, but adequate transparency for a simple query tool would still benefit from such details.
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 that front-load the verb and resource, then enumerate actions and use cases efficiently. Every sentence adds value.
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 no output schema or annotations, the description provides adequate context for purpose and usage but lacks detail on return format, error handling, or data scoping. It is minimally complete for a straightforward query 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%, and descriptions already exist for all parameters. The description reiterates the enum values for action but adds no significant new meaning beyond the schema, resulting in a 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?
The description clearly states it queries Datadog usage metering data and lists specific actions (summary, hosts, logs, etc.), distinguishing it from sibling tools focused on other Datadog features.
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 explicitly mentions use cases (cost management, capacity planning, usage tracking, billing analysis), providing context for when to use this tool. It does not explicitly state when not to use it, but the sibling list offers implicit differentiation.
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, the description carries full burden for behavioral disclosure. It states actions like create, update, cancel but does not explain side effects (e.g., cancellations may suppress alerts, creation affects active monitors). The impact on alerting and dependencies is not described, leaving gaps for an agent.
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 three sentences with no fluff: first sentence states purpose, second lists actions, third gives use cases. Information 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.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The tool has 6 parameters and nested objects, and lacks an output schema. The description covers main uses and actions but omits details on error handling, idempotency, or response formats. It is adequate for basic understanding but not exhaustive for the tool's complexity.
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%, but the description adds value by stating the config parameter 'Must include scope and schedule,' which is not in the schema description. It also enumerates actions in plain text, reinforcing the enum. This goes beyond mere repetition.
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 manages Datadog scheduled downtimes for maintenance windows, listing specific actions (list, get, create, update, cancel, listByMonitor). It distinguishes from sibling tools focused on other Datadog resources like monitors or dashboards.
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 explicit usage scenarios: scheduling maintenance, preventing false alerts during deployments, managing recurring maintenance windows. It does not mention when not to use the tool or name alternatives, but the context is clear enough for an agent to decide.
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?
Without annotations, the description carries the full burden. It lists actions and their effects but does not disclose details like tag persistence, source behavior, or deletion reversibility.
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 convey purpose, actions, and use case. 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?
Fairly complete for a CRUD tool: actions cover main operations. Missing details like response format or error handling, but adequate given no output schema.
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 descriptions for all parameters. The description adds no new meaning beyond the schema; it only repeats the action names.
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 manages Datadog host tags and enumerates five specific actions (list, get, add, update, delete). This distinguishes it from sibling tools that manage other Datadog resources.
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 includes 'Use for: infrastructure organization, filtering, grouping' which gives clear usage context. However, it does not explicitly exclude scenarios or mention alternatives, leaving some gaps.
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 are provided, so the description bears full responsibility. It discloses read-only mode blocking mutations and forwarding of unknown processor types. Yet it omits details on success/error responses, pagination for list/get, and the impact of deletion.
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 concise sentences immediately state purpose and actions. Every sentence adds unique information with no redundancy, making the description efficient.
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 complexity (7 actions, 5 params, nested objects) and lack of output schema, the description should clarify return values and error patterns. It covers basic behaviors but leaves gaps about list/get outputs and reordering side effects.
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?
All 5 parameters have schema descriptions (100% coverage), achieving baseline 3. The description adds value by stating that config requires 'name and filter.query' and that processors are forwarded unchanged, plus explaining the verbose parameter. This enriches parameter understanding 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 explicitly states 'Manage Datadog Logs pipelines (parsing & processor chains)' and lists all 7 actions (list, get, create, update, delete, reorder, get_order), clearly identifying the verb and resource. It distinguishes from sibling tools like logs_archives, logs_indexes, and logs by focusing on pipelines.
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 context: pipelines run sequentially, reorder changes downstream data, and mutations are blocked in read-only mode. However, it doesn't explicitly contrast with other logging tools or specify when to use this tool over alternatives like logs.
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 carries full burden. It describes the tool as querying data and performing actions like aggregate, performance, and waterfall, which suggests read-only behavior. However, it does not explicitly state idempotency, rate limits, or authentication requirements. The lack of contradiction with annotations is fine, but more detail on behavioral traits would improve transparency.
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: a single paragraph with a clear structure—first sentence defines purpose, then a bullet-like list of actions with brief explanations, finally a sentence on use cases. No redundant information, and every sentence 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 the tool's complexity (13 parameters, no output schema), the description provides a solid overview of actions and use cases. It explains each action's purpose and mentions key metrics (Core Web Vitals). However, it could be more complete by explicitly stating the tool is read-only and how to construct queries for different actions.
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 description coverage is 100%, so baseline is 3. The description adds value by explaining actions (e.g., 'Core Web Vitals: LCP, FCP, CLS, FID, INP') and giving examples for query syntax. It also describes the 'waterfall' action as 'session timeline with resources/actions/errors', which provides context beyond the schema's parameter descriptions.
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 queries Datadog RUM data and lists specific actions with their purposes (e.g., 'applications (list RUM apps)', 'events (search RUM events)'). It distinguishes from sibling tools by focusing on frontend performance, user sessions, page views, errors, and resource loading, which are unique to RUM.
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 clear context for usage: 'Use for: frontend performance, user sessions, page views, errors, resource loading.' It does not explicitly state when not to use or compare to alternatives, but the listed use cases and sibling tools (logs, metrics) imply the tool's domain.
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 are provided, so the description carries the full burden. It reveals that traces auto-generate metrics in a specific namespace, which is a behavioral trait. However, it does not disclose whether the tool is read-only, rate limits, or authentication requirements. The description adds some context but is 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.
Conciseness4/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is informative but somewhat lengthy; it front-loads the purpose and actions, then provides filter examples and APM metrics guidance. Most sentences add value, though the APM metrics section could be more concise. Overall, it is structured well with clear sections.
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 17 parameters and no output schema, the description covers actions, filter details, and includes a crucial note about auto-generated metrics and percentile querying. This provides a comprehensive understanding of the tool's capabilities and relationships with other tools.
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 description coverage is 100%, with every parameter having a description. The description adds value by providing examples and format details for parameters like 'from' and 'to' (ISO 8601, relative), 'httpStatus', and 'minDuration'. This goes beyond the basic schema, earning a score above the 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?
The description clearly states the tool's purpose: 'Analyze APM traces for request flow and latency debugging.' It lists specific actions (search, aggregate, services) and resources (traces). This differentiates it from sibling tools like logs, metrics, etc., which handle different data types.
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 context on when to use this tool: for APM trace analysis, with key filters for latency and status. It explicitly directs users to the metrics tool for percentile queries, offering an alternative. However, it does not explicitly state when not to use it or provide exclusions for specific scenarios.
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?
The description clearly indicates a read/validation operation with no side effects. Since no annotations are provided, the description adequately covers the tool's behavior.
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 wasted words. The purpose is front-loaded, and 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 the tool's simplicity (one parameter, no output schema, no annotations), the description provides all necessary context for use.
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% (one parameter with enum described). The description does not add significant meaning beyond the schema, but the parameter is straightforward enough that this is acceptable.
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 'Validate Datadog API credentials.' It uses a specific verb-resource pair and is well-distinguished from sibling tools which are other Datadog resources.
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 this tool 'to verify that the API key and App key are correctly configured before performing other operations.' This provides good context, though it does not explicitly exclude any scenarios or mention 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?
No annotations provided, so the description carries full burden. It discloses correlations with traces, sampling behavior, compact flag effects, and time range formats. However, it does not mention that the tool is read-only or any potential side effects, though it is likely idempotent.
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 well-structured with sections (actions, filters, time ranges, CORRELATION, SAMPLING, TOKEN TIP). Every sentence provides useful information without redundancy. It is appropriately concise given the complexity of the tool.
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 description covers most aspects: actions, filters, time ranges, sampling, and compact. However, it does not describe the output format or mention pagination (default limit is in schema). Given 16 parameters and no output schema, it is fairly complete but has minor gaps.
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 the description adds significant value beyond the schema: explaining grep-like filtering, time range syntax, sampling modes (diverse/spread/first), and compact stripping details. It also provides examples 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?
The description clearly states the tool searches Datadog logs with grep-like text filtering and lists actions (search/aggregate). It distinguishes from general siblings like traces or metrics, but does not differentiate from specific log-related siblings like logs_archives or logs_indexes.
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 actions, filters, time ranges, sampling modes, and the compact flag. However, it does not explicitly state when to use this tool versus other log-related tools (e.g., logs_archives, logs_indexes), which are present in sibling 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 that mutations (update, reorder) are blocked in read-only mode and that create/delete are UI-only. It clarifies that Datadog identifies indexes by 'name' not 'id', aiding correct usage. However, it could explicitly mention that updates are mutating and may have side effects.
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 four sentences with clear structure: first sentence states purpose, second lists actions, third clarifies identifier, fourth notes constraints. No wasted words, front-loaded with essential information.
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?
While the description covers actions, parameters, and constraints, it lacks information about return values or output format for each action. With no output schema, the tool would benefit from brief hints (e.g., 'list returns an array of indexes'). The description is adequate but has a clear gap in explaining what each action returns.
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%, so baseline is 3. The description adds significant meaning: it notes that Datadog identifies indexes by 'name', not 'id'; for update, it specifies that 'config' requires filter.query and numRetentionDays, and that exclusion filters are forwarded unchanged. This goes well beyond the schema's parameter descriptions.
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 manages Datadog Logs indexes, listing specific actions (list, get, update, reorder, get_order). It distinguishes from sibling tools like logs_archives and logs_pipelines by focusing specifically on index operations.
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 specifies the available actions and notes that create/delete are not supported via API, guiding the agent away from unsupported operations. It also warns that mutations are blocked when the server is in read-only mode, providing clear usage context.
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 carries the full burden. It correctly conveys that the tool is read-only and returns enum values. While it doesn't detail error handling or auth, the behavioral traits are sufficiently clear for a simple schema lookup.
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 only two sentences, front-loaded with the core purpose, and every sentence adds value. It is appropriately sized with 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 simplicity (one required parameter, no output schema), the description provides sufficient context. It explains the purpose, usage timing, and examples of returned values, leaving little ambiguity.
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 fully describes the parameter. The description adds value by detailing the types of valid values returned for each resource (e.g., palettes, aggregators), enhancing understanding beyond the raw enum list.
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: 'Get valid enum values for Datadog API fields.' It lists concrete examples (palettes, widget types, etc.) and distinguishes it from sibling tools that operate on specific resources.
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 advises using the tool 'before creating or updating Datadog resources,' providing clear context for when to use it. It does not mention alternatives or when not to use it, which is acceptable given the tool's straightforward nature.
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 provided, so the description carries the full burden. It explains CRUD operations and their effects, provides widget format examples, and specifies tag format requirements. It could mention rate limits or authentication, but it is generally 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 well-structured with bullet points for actions and examples for widget formats. Every sentence serves a purpose, no redundancy. It is appropriately front-loaded with the tool's purpose.
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 complexity (6 parameters, nested objects, no output schema), the description is remarkably complete. It covers all actions, parameter requirements (e.g., 'id' for get/update/delete), and provides formatting examples. The agent has sufficient context to use the tool correctly.
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 the description adds substantial value beyond parameter names: it explains what each action does, describes the 'config' object with widget examples, and clarifies tag format. This enriches understanding significantly.
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 provides access to Datadog dashboards and visualizations, and lists six distinct actions (list, get, create, update, delete, validate) with brief explanations. This distinguishes it well from sibling tools like monitors, logs, etc.
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 gives guidance for each action (e.g., 'get' for learning patterns, 'validate' for debugging), which helps the agent choose appropriately. However, explicit 'when not to use' or comparative guidance against siblings is missing.
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 behavioral disclosure weight. It explains that source:alert includes renotifies, transitionType filters transitions, top returns message field not monitor name, histogram has limits and incomplete markers, and enrich is slower. Lacks details on create action behavior but overall strong.
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 relatively long but well-structured with sections for actions, important notes, and action-specific details. It is front-loaded with the core purpose and overall usage guidelines. Every sentence adds value, though some redundancy exists (e.g., transitionType explanation repeated).
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 23 parameters, no output schema, and complex semantics (e.g., transition filtering, histogram limits), the description is remarkably complete. It covers action purposes, parameter interactions, default values, edge cases (empty array), and behavior nuances (total_count includes renotifies, bucketCountIncomplete).
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%, baseline 3. The description adds significant value beyond schema: it explains transitionType filter behavior, default contextTags, bucket_by options, timezone DST-safety, and differences between top and aggregate. Elevates understanding beyond parameter descriptions alone.
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 'Track Datadog events' and lists all 10 supported actions. It provides specific details on how to handle monitor-related events, such as using tags ["source:alert"] and transitionType. It distinguishes the tool from siblings like monitors by directing users to monitors action=history for fires-only counts.
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 explicitly tells users when to use this tool vs alternatives: 'For a fires-only numeric count... prefer the higher-level primitive monitors action=history'. It also explains the meaning of source:alert and transitionType, and provides guidance on when to use top vs aggregate vs histogram actions.
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?
With no annotations, the description carries full burden and thoroughly discloses behavioral traits: time range requirements, search as grep-like, list for recent 24h, metadata returns details. It also explains APM metrics structure (operation names, tags, suffixes for percentiles/avg). This is comprehensive transparency.
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 long but well-structured with clear sections (Actions, APM Metrics, Percentiles, etc.). It is front-loaded with the core action list. Every sentence provides essential information for a complex tool, earning its place.
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 complexity (8 params, 4 actions, APM intricacies) and no output schema, the description is remarkably complete. It covers time formats, action-specific requirements, advanced metric types, and even links to sibling tool 'traces' for discovery.
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%, setting baseline at 3. The description adds meaning beyond schema by clarifying parameter semantics: e.g., 'query' parameter meaning depends on action, from/to are only for query, metric for metadata, default limits. This adds significant 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 queries Datadog metrics and lists four distinct actions (query, search, list, metadata) with specific use cases. It distinguishes from sibling tools (e.g., traces, logs) by focusing on metrics, providing purpose clarity.
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 explicit guidelines for each action, including required parameters (e.g., from/to for query) and search behavior (grep-like, no time param). It also includes advanced usage for APM metrics and percentiles. However, it does not explicitly state when not to use this tool vs siblings, though it's largely implied.
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 exist, so description fully discloses behaviors: read-then-patch pattern, validation errors, snake_case aliases, unknown key forwarding, supported template syntax, dry_run behavior, and known limitations. Very transparent.
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 well-structured with sections for each action and front-loaded with top-level info. However, it is somewhat lengthy; could be streamlined without losing clarity. Still appropriate for complexity.
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 20 parameters, no output schema, and diverse actions, the description is remarkably complete. It covers all actions, parameter details, edge cases, mistakes, and references, leaving no major gaps for an agent.
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 extensive context beyond schema: details on config options categories, preview parameters, history transition types, top context breakdown, timezone behavior, and more. Adds significant 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 explicitly states 'Manage Datadog monitors' and enumerates specific actions (list, get, search, etc.), clearly distinguishing the tool's purpose from siblings like events. It specifies the resource and verbs.
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?
Provides explicit guidance on when to use each action (e.g., use history for fires-only counts, top for renotify-inflated counts) and mentions alternative tools (events) for generic event grouping. Clearly states caveats like test_notification not supported.
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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