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Audit or design agent-facing product capabilities: action/context parity, discoverable contracts, safe mutations, verifiable outcomes, and recovery. Use for explicit agent-readiness reviews of apps, repos, CLIs, APIs, MCP/A2A integrations, or Agent Skills; not every general code or documentation task.

Use this Skill: https://skilld.dev/gh/tristanmanchester/agent-skills/agent-use

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referencesaudit-playbook.md

≈2.3k tokens on demand. Your agent reads this file only when SKILL.md points to it.

Agent-use audit playbook

Use this playbook to audit existing work. The goal is not to prove that a system is “bad for agents.” The goal is to find the smallest concrete changes that make agents more successful while preserving safety and maintainability.

1. Scope the audit

Write down:

  • Target name and version/date.
  • Surfaces in scope: repo, docs website, app UI, CLI/TUI, API, SDK, MCP/tool server, agent skill, files, auth, observability.
  • Intended agent tasks: what should an agent be able to do?
  • Constraints: private repo, no network, no credentials, read-only review, safety limits.
  • Non-goals: surfaces that intentionally do not apply.

Assume partial evidence. Be explicit about what was not inspectable.

2. Fast triage

Look for these high-signal files and endpoints.

Repository:

  • README.md, AGENTS.md, CONTRIBUTING.md, docs/, examples/, scripts/, bin/, cli/, .github/, openapi.*, schema.*, mcp.*, package.json, pyproject.toml, Cargo.toml, go.mod.
  • Tests and evals: tests/, e2e/, evals/, fixtures/, goldens/.
  • Safety and permissions: auth middleware, policy docs, RBAC, audit logs, destructive operations.

Website/docs:

  • /llms.txt, /llms-full.txt, /robots.txt, /sitemap.xml.
  • Markdown alternatives such as /docs/index.md or content negotiation with Accept: text/markdown.
  • /.well-known/api-catalog, /.well-known/mcp.json, /.well-known/agent-skills/index.json, OAuth protected-resource metadata, and authorization-server metadata.
  • API references, SDK references, CLI references, changelog, examples, limits, errors, auth scopes.

CLI/TUI:

  • --help, --version, --output json, --format json, --json.
  • Non-interactive equivalents for prompts.
  • Exit codes, stderr/stdout separation, config/env docs, dry-run/yes flags, idempotency.

API/SDK:

  • OpenAPI/GraphQL/protobuf/JSON Schema.
  • Auth scopes, pagination, errors, idempotency, rate limits, sandbox.
  • SDK method naming, typed parameters, examples, generated docs.

MCP/tools:

  • Tool names/descriptions/input schemas/examples.
  • Resource listings and prompt templates where useful.
  • Consent, side-effect descriptions, safe defaults, output shapes.

3. Run automated checks

Use bundled scripts where applicable:

python scripts/audit_agent_use.py --root /path/to/repo --markdown --output agent-use-report.md --json-output agent-use-report.json
python scripts/web_agent_readiness.py https://example.com/docs --markdown --profile auto --output web-agent-readiness.md
python scripts/validate_agent_assets.py --skill-dir /path/to/skill --run-help --py-compile --markdown

Treat script output as a triage aid, not as final truth. The best audits combine automated signals with manual inspection of the actual user/agent journey.

4. Build the action/context parity map

For each important workflow, fill this table:

Human workflow Human context Agent-readable context Agent action path Recovery path Gap
Example: create project Form fields, org, plan, permission, validation errors GET /orgs/{id}, schema, limits, scopes POST /projects or tool:project.create idempotency key, delete/rollback Missing schema for limits

Good audits are won or lost here. If a UI has ten important buttons and only two are exposed through an API/CLI/tool, that is an action-parity gap. If the API exists but agents cannot know which ID, limit, plan, or permission applies, that is a context-parity gap.

5. Inspect common failure modes

Discovery failure

The agent cannot find the right entry point, current docs, or canonical schema.

Evidence examples:

  • No README, AGENTS.md, llms.txt, sitemap, OpenAPI link, or CLI reference.
  • Docs search requires JavaScript and has no stable result URLs.
  • Multiple conflicting docs versions with no redirects.

Fix examples:

  • Add AGENTS.md and link all machine surfaces.
  • Add llms.txt with concise links to docs, API, SDK, CLI, examples, changelog, auth, limits, and support.
  • Add /.well-known/api-catalog or prominent API spec links.

Context failure

The agent can find actions but cannot determine the right parameters.

Evidence examples:

  • UI shows selected workspace but API docs do not explain workspace IDs.
  • CLI can deploy but cannot list valid environments in JSON.
  • Tool returns a success string but no created object ID.

Fix examples:

  • Add list/get endpoints, resource schemas, and examples.
  • Include identifiers and links in every mutation response.
  • Expose active workspace/state through API/tool/context payload.

Action failure

The agent knows what to do but cannot do it through a stable non-UI interface.

Evidence examples:

  • Only browser UI can approve, export, configure, or delete.
  • CLI prompts for required values but no flags exist.
  • SDK covers reads but not writes.

Fix examples:

  • Add typed primitive operations.
  • Add non-interactive flags and JSON output.
  • Ensure SDK/API/CLI parity for high-value workflows.

Parse failure

The agent executes the action but cannot reliably parse the result.

Evidence examples:

  • CLI prints colorful tables and progress bars mixed with output.
  • Errors are natural language only.
  • API returns different shapes for the same error class.

Fix examples:

  • Add --output json and schema docs.
  • Separate stdout data from stderr diagnostics.
  • Standardize error envelope with code, message, retryable, details, remediation, correlation_id.

Safety failure

The easiest agent path is too powerful or irreversible.

Evidence examples:

  • Token grants all scopes.
  • Destructive command has no dry-run or soft delete.
  • No audit log or actor attribution.

Fix examples:

  • Add scoped credentials, read-only mode, preview/dry-run, idempotency keys, human approval gates, rollback/undo, and audit logs.

Recovery failure

Normal interruptions cause duplicate, stuck, or unverifiable work.

Evidence examples:

  • Create operations are not idempotent.
  • Long-running job has no status endpoint.
  • Pagination is absent from list operations.

Fix examples:

  • Add idempotency keys, job status endpoints, resume tokens, checkpoints, and retryable error classification.

Eval failure

No one knows whether changes help agents.

Evidence examples:

  • No task-level examples.
  • No with/without-surface benchmark.
  • Docs examples are never executed.

Fix examples:

  • Add eval tasks from real support tickets or user workflows.
  • Add assertions over final state.
  • Track invalid tool calls, repeated docs searches, error recovery, token use, latency, and human approval rate.

6. Scoring process

Use references/scoring-rubric.md.

For each applicable dimension:

  1. Give a 0-10 score.
  2. Cite evidence.
  3. Name the main gap.
  4. Propose one or more fixes.
  5. Mark severity:
    • Critical: blocks most agent use or creates serious safety risk.
    • High: blocks important workflows or causes frequent wrong actions.
    • Medium: causes avoidable friction or repeated failures.
    • Low: polish, consistency, or documentation improvement.

Overall score is the average of applicable dimensions multiplied by 10. Do not include non-applicable dimensions in the denominator.

7. Remediation planning

Group recommendations by implementation time and dependency.

0-2 days

Fast, high-leverage changes:

  • Add AGENTS.md.
  • Add llms.txt.
  • Link existing API/SDK/CLI/MCP docs from README and docs homepage.
  • Add --output json to one or two high-value CLI commands.
  • Add missing examples for top workflows.
  • Add a machine-readable error schema to docs.
  • Add eval prompts and expected outputs.

2-7 days

Targeted engineering changes:

  • Add OpenAPI or update stale schema.
  • Add non-interactive CLI flags.
  • Add dry-run/preview to destructive commands.
  • Add idempotency keys to critical mutations.
  • Add list/get endpoints needed for context parity.
  • Add structured tool responses and response schemas.
  • Add docs redirects and canonical URLs.

7-30 days

Architectural work:

  • Create full action/context parity across UI, CLI, API, SDK, and tools.
  • Build shared workspace/event model for human-agent collaboration.
  • Add scoped auth and audit logs.
  • Add sandbox mode.
  • Add automated eval suite and telemetry dashboard.
  • Refactor opaque workflows into composable primitives.

8. Audit output checklist

A complete audit includes:

  • Target and date.
  • Surfaces reviewed and not reviewed.
  • Overall score and grade.
  • Dimension scores with evidence.
  • Action/context parity map.
  • Top 5-10 remediation items.
  • Safety and recovery findings.
  • Eval plan.
  • Any assumptions, limits, or uncertainty.

9. Red flags that deserve explicit callout

  • Agents must use browser automation for core product actions.
  • CLI prompts are required and cannot be bypassed.
  • No machine-readable outputs for automation surfaces.
  • Write operations are non-idempotent and irreversible.
  • Tool descriptions hide side effects.
  • Docs examples are stale or impossible to run.
  • Auth scopes are undocumented or all-powerful.
  • Agents can act but cannot inspect current state.
  • Large docs pages lack anchors or markdown equivalents.
  • Error messages lack stable codes and remediation.

Source: SKILL.md on GitHub

skilld matched fixed text patterns in SKILL.md and file names. Patterns miss obfuscated code.

skilld run checks every file with the same patterns. It asks for approval before it loads a Skill with a behavior marked Needs approval.

1 warning1mo3 checks · Risk SAFE
  • Gen Agent Trust Hub1mo

    The skill 'agent-use' is a comprehensive toolkit for auditing and designing agent-ready systems. It includes documentation, templates, and Python scripts for scanning repositories and websites. Security analysis found no malicious intent; identified network and command execution patterns are aligned with the skill's primary purpose as an auditing tool.

  • Socket1mo

    1 alert: gptAnomaly

  • Snyk1mo

    Risk: LOW · No issues

Signed by skilld at 3323bc9. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub 2 weeks ago.

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metadata
{
  "version": "3.0.0",
  "reviewed": "2026-09-13"
}
Other metadata
compatibility
Local helper scripts require Python 3.10+; structural validation also requires PyYAML 6.0.3 or later in major 6. Network and execution checks need separately authorised tools and environments.

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