tool-use-guardian
GRATUIT — Wrapper intelligent de fiabilité des appels d'outils. Surveille, réessaie, corrige et apprend des défaillances d'outils. Récupère automatiquement des JSON tronqués, des dépassements de délai, des limites de débit et des défaillances en chaîne.
Le contenu de ce skill est dans sa langue d’origine (souvent l’anglais).
Tool Use Guardian
Overview
The reliability wrapper every AI agent needs. Monitors tool calls, auto-retries failures, fixes truncated responses, and learns which tools are unreliable — so you never lose your chain of thought.
Free forever. Built by the Genesis Agent Marketplace.
Install
npx skills add christopherlhammer11-ai/tool-use-guardian
When to Use This Skill
- Use when tool calls return truncated or malformed JSON
- Use when APIs timeout or rate-limit your agent mid-task
- Use when a multi-step chain breaks partway through
- Use when you need automatic retry logic without writing it yourself
- Use for any agent workflow that depends on external tool reliability
How It Works
Step 1: Pre-Call Validation
Before every tool call, Guardian validates:
- Required parameters are present and correctly typed
- The tool is not marked as "unreliable" from previous failures
- Request size is within known limits
Step 2: Failure Classification
When a tool call fails, Guardian classifies the failure into one of 9 categories:
| Failure Type | Recovery Action |
|---|---|
| Truncated JSON | Re-fetch with pagination or smaller chunks |
| API Timeout | Retry once with simpler request, then decompose |
| Rate Limit (429) | Exponential backoff, max 3 retries |
| Auth Expired | Flag for user intervention |
| Mid-chain Break | Resume from last successful checkpoint |
| Error-as-200 | Detect {"error": "..."} disguised as success |
| Schema Mismatch | Attempt auto-coercion, warn if lossy |
| Network Failure | Retry with jitter, max 2 attempts |
| Unknown Error | Log full context, escalate to user |
Step 3: Chain Protection
For multi-step tool chains, Guardian maintains checkpoints. If step 4 of 7 fails, it resumes from step 4 — never restarts from scratch.
Step 4: Learning
Guardian tracks failure patterns per tool. After 3+ failures of the same type, it marks the tool as unreliable and suggests alternatives.
Best Practices
- ✅ Let Guardian wrap all external tool calls automatically
- ✅ Review Guardian's reliability reports to identify flaky tools
- ✅ Use checkpoint recovery for long chains
- ❌ Don't disable retry logic for rate-limited APIs
- ❌ Don't ignore repeated failure warnings
Related Skills
@recallmax- Long-context memory enhancement (also free from Genesis Marketplace)
Links
- Repo: https://github.com/christopherlhammer11-ai/tool-use-guardian
- Marketplace: https://genesis-node-api.vercel.app
- Browse skills: https://genesis-marketplace.vercel.app
Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.