AnyHook

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description must disclose behavioral traits. It states it creates an app and returns an inbound URL, but does not mention any side effects, idempotency, or prerequisites (e.g., whether name must be unique). This is 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.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, concise sentence that front-loads the essential information: what is created and what is returned. No wasted words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite no output schema, the description adequately explains the return value (inbound URL). With 4 parameters all described in schema with added context, the description is complete for the tool's complexity.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, and the description adds value beyond the schema by explaining the 'source' parameter (signature auto-detection) and the 'api_key' parameter (only needed over HTTP, ignored over stdio). This helps the agent understand context-specific usage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action (Create), the resource (app), and the required/optional inputs (name, provider source, optionally destinations). It also mentions the return value (inbound URL), which distinguishes it from sibling tools like anyhook_apps_list.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implicitly indicates when to use this tool (when creating a new app) but does not provide explicit guidance on when not to use it or alternatives. Given the tool's name and sibling context, the usage is clear enough.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided; description only states it lists apps without disclosing side effects, authentication details (beyond param hint), or rate limits. Minimal 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.

Is the description appropriately sized, front-loaded, and free of redundancy?

Single sentence with clear verb and resource, front-loaded. No unnecessary words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Sufficient for a simple list tool with one optional parameter. No output schema but description mentions returned fields, covering what agent needs.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema already describes the single 'api_key' parameter fully. Description adds no extra meaning beyond schema, and schema coverage is 100%, so baseline of 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states the tool lists apps in the AnyHook account, specifying the returned fields (inbound URLs, sources, destination URLs). Distinguishes from sibling tools like anyhook_apps_create.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Implies use for listing apps but provides no explicit guidance on when to use this tool vs siblings like anyhook_apps_create or anyhook_events. No alternatives mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Discloses ordering and dual-mode behavior, but no annotations exist. Does not mention read-only nature, pagination, or error handling, leaving some behavioral aspects implicit.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Single sentence is concise and front-loaded with key info. Could be slightly more structured but efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema and 5 parameters, description provides adequate context for a simple list tool. Return values and parameter details are covered by schema, but some behavioral aspects (e.g., pagination) are missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is high (80%), so description adds minimal value beyond parameter names and constraints. The description itself does not elaborate on parameters.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states it lists webhook events, with ordering (most recent first) and dual-mode operation (account vs local). Distinguishes from siblings like anyhook_replay and anyhook_undelivered.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides context on when to use (listing events) and mode differences, but lacks explicit exclusions or alternatives. Sibling tools are sufficiently different, so no confusion expected.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided, and the description only adds 'Account or local store' for context. No mention of permissions, side effects, rate limits, or safety profile beyond the implied read operation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

One sentence covering all key aspects without redundancy. Highly efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Adequate for a simple tool with 2 parameters and no output schema. Could briefly note the return fields, but the description covers the core purpose and inputs.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Enriches schema by explaining the id is from anyhook_events and the api_key is only needed over HTTP without Authorization header. Schema coverage is 100%, so additional context adds value.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states the tool provides full detail for one event including source, type, status, and delivery summary. Distinguishes from siblings like anyhook_events (which lists events) and anyhook_undelivered.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Implies usage when you need full detail for a single event, but does not explicitly state when to use this vs alternatives or provide exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden. It explains that a valid signature is generated, secret falls back to a default, and the request is optionally POSTed. This outlines the core behavior clearly. However, it omits details like potential side effects, rate limits, or authentication requirements, which are not critical for a mock tool but could be elaborated.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two sentences long, front-loaded with the primary purpose, and contains no redundant information. Every sentence serves a purpose: the first defines the core action, the second adds the conditional POST behavior. It is highly efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description covers the main behavior but leaves ambiguity about the return format when no targetUrl is provided. It only describes the response for the targetUrl case. Given no output schema, this gap may confuse an agent about what is returned in the default case. Additional clarity on the return payload would improve completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

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 meaningful value beyond the schema: for 'data' it clarifies 'deep-merge into the fixture', for 'event' it gives a concrete example, for 'secret' it notes the fallback to a deterministic default, and for 'targetUrl' it explains the POST behavior. This enhances the schema's documentation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool generates a webhook request with a valid signature for three specific providers (Stripe, GitHub, Slack) and optionally POSTs it. The verb 'Generate' and the resource 'webhook request' are specific, and the sibling tools list confirms this is distinct from other anyhook operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for simulating webhooks but does not explicitly state when to use this tool over alternatives or provide exclusion criteria. It mentions the conditional behavior with targetUrl but offers no guidance on when not to use it or how it compares to related tools like verify or replay.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations exist, so the description must convey behavioral traits. It states it lists providers and events, but gives no details on response structure, authentication needs, rate limits, or whether the list is static or dynamic.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

One sentence, no fluff, front-loaded with purpose. Every word earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a parameter-less listing tool with no output schema, the description is adequately complete. It explains what the tool returns, though adding a note about response structure would improve completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

No parameters exist, so baseline is 4. The description adds value by specifying what is listed (providers and event types), making the tool's output clear.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool lists webhook providers and their event types, using a specific verb and resource. It distinguishes from siblings like anyhook_mock or anyhook_apps_create, which are action-oriented rather than informational.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for discovering available providers before using mocking or other tools, but does not explicitly state when to use it over alternatives or when not to use it. No exclusions or context provided.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided, so description carries full burden. Discloses ephemeral nature, 7-day expiry, session auto-connect, and returned fields. Does not cover rate limits or idempotency, but covers key behavioral traits.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Three sentences: first summarizes action, second enumerates return values, third adds key context (auto-connect, expiry). No redundant words, well-structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema, description adequately explains return values. Parameters are optional and documented. Expiry and session linking are covered. Sufficient for agent to use correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with clear descriptions. The tool description does not add new parameter details beyond what the schema provides (source and destination_url). Acceptable but not additive.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Name and title clearly indicate creating a free endpoint. Description specifies verb (creates), resource (ephemeral relay endpoint + API key), and distinct feature (no signup). Clearly distinguishes from siblings like anyhook_apps_create which likely requires an account.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

States 'zero-config bootstrap' and 'no signup', implying use when quick setup is needed. Mentions session auto-connects and expiry. Does not explicitly exclude scenarios or mention sibling tools, but context is clear enough.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description must cover behavioral traits. It discloses that replay does not consume quota, but misses other important behaviors: prerequisite that the event must be stored, what happens if the event ID does not exist, and whether replaying can cause duplicate deliveries. The description is adequate but has gaps.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description consists of two concise sentences. The first sentence states the purpose immediately, and the second adds key behavioral information. No unnecessary words or redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (2 parameters, 1 required, no output schema), the description covers purpose, quota impact, and API key usage. However, it lacks information about the return value or success/failure indications, which would help the agent use the tool effectively. Nearly complete but with a minor gap.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with both parameters described. The description adds value beyond the schema for the 'api_key' parameter by explaining when it is needed (over HTTP without Authorization header) and that it is ignored over stdio. The 'id' parameter description partially repeats the schema but adds the quota safety note.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states 'Re-send a stored event to its destinations', which is a specific verb ('replay') and resource (stored event). It distinguishes from siblings like 'anyhook_replay_failed' by focusing on any stored event, not just failed ones.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description says 'Replay does NOT consume monthly event quota — safe to call repeatedly while debugging', which gives clear context for when to use it (debugging) and why (no quota). However, it does not explicitly mention when not to use it or compare to alternatives like 'replay_failed'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries full burden. It explains the action (re-send failed events) but does not disclose idempotency, success/failure behavior, rate limits, or authentication details beyond the api_key parameter. Partial transparency but gaps remain.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences with zero wasted words. The description is front-loaded with the core action and immediately provides a use case. Highly efficient.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple tool with 2 parameters and no output schema, the description explains purpose and usage scenario. However, it lacks details on partial failures or side effects. Given the tool's simplicity and clear context, it is mostly complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%. The description for appSlug repeats the schema's description. The api_key description adds useful context about when it is needed. Overall, minimal additional meaning beyond the schema, earning a baseline of 3.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Title 'Bulk-replay all failed events for an app' and description 'Re-send every failed event for the given app slug' clearly state the action (re-send), resource (failed events), and scope (for an app). It distinguishes from siblings like anyhook_replay which likely handles individual events.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Description explicitly says 'Useful after fixing a downstream bug to recover queued work', providing a concrete scenario. However, it does not mention when not to use it or compare with alternatives like anyhook_undelivered.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description must carry the full behavioral burden. It explains the core behavior (listing undelivered events) but omits details on authentication, error handling, or what happens on empty results. The inclusion of retrying events adds some nuance, but overall behavioral coverage is moderate.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

A single, well-structured sentence conveys the tool's purpose without redundancy. Every word contributes meaning, making it highly efficient for an agent to parse quickly.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the lack of output schema and moderate parameter count, the description is minimally adequate. It covers the what and the filtering condition, but does not address pagination (limit) or return format, leaving some gaps for complex scenarios.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Only 33% of parameters have schema descriptions (api_key). The tool description does not add meaning to appSlug or limit; it merely restates they exist. For a tool with low schema coverage, the description should clarify these parameters but fails to do so, adding minimal value beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states the tool lists events that have not successfully reached any destination, specifying the condition 'failed or still retrying'. It distinguishes from sibling tools like anyhook_events (all events) and anyhook_replay_failed (likely only failed), making the purpose explicit and precise.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No explicit guidance on when to use this tool versus alternatives. Among siblings like anyhook_events, anyhook_replay, and anyhook_replay_failed, the description does not clarify scenarios for choosing this tool, leaving the agent to infer usage without clear boundaries.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries full burden. It mentions supported providers but does not disclose behavioral traits such as expected outcomes, error behavior, authentication requirements, or rate limits. The description is minimal and leaves significant 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.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise: one sentence stating the purpose and a list of providers. It is front-loaded and avoids verbosity, though it could be slightly more structured (e.g., separating purpose from provider list).

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With 5 parameters (1 nested), no output schema, and no annotations, the description is incomplete. It does not explain what the tool returns (e.g., boolean result, error details), how to handle failures, or provide any context about the verification process. This is a significant gap for a verification tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

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 (body, secret, headers, provider, requestUrl). The description adds only a list of example providers, adding minimal value 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.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Verify' and the resource 'webhook signature against a secret'. It lists 19 supported providers, distinguishing the tool from sibling tools that handle other webhook operations like creation, listing, and replay.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for verifying webhook signatures from supported providers, but provides no explicit guidance on when to use this tool versus alternatives (e.g., when to use 'generic' provider or other tools). The context is clear but lacks exclusions or alternative recommendations.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.