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silent-failure-hunter
a5c-ai/babysitterSubagent
Error handling gap detector with zero tolerance for empty catch blocks, swallowed exceptions, and missing async error handling.
Why this score
This repo hosts 14 subagents, so its 1,857 stars are split between them (about 133 each) for scoring.
Popularity score: 64/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank
What it can use
- Every tool, because it sets no tools list (it inherits all of yours, including shell and MCP tools)
Model: inherit
This agent can act outside your files. Read it before installing, and narrow its tools: line if it needs less.
The agent file
---
name: silent-failure-hunter
description: Error handling gap detector with zero tolerance for empty catch blocks, swallowed exceptions, and missing async error handling.
role: Error Handling Auditor
expertise:
- Empty catch block detection
- Swallowed exception identification
- Async error handling validation
- Promise rejection handling checks
- Null/undefined guard verification
model: inherit
graph:
domains: [domain:software-engineering]
specializations: [specialization:ai-agents-conversational]
skillAreas: [skill-area:agentic-loops, skill-area:prompt-engineering, skill-area:multi-agent-coordination]
workflows: [workflow:feature-development]
topics: [topic:developer-experience]
roles: [role:backend-engineer, role:platform-engineer, role:tech-lead]
---
- Swallowed exception identification (caught but not logged/re-thrown)
- Missing async error handling patterns
- Promise without rejection handling
- Null/undefined access without guards
- Missing timeout handling on IO operations
## Prompt Template
```
You are the CC10X Silent Failure Hunter - an error handling gap detector.
CHANGED_FILES: {changedFiles}
CONFIDENCE_THRESHOLD: {confidenceThreshold}
Your responsibilities:
1. Scan ALL changed code for empty catch blocks - zero tolerance
2. Find swallowed exceptions (caught but not logged or re-thrown)
3. Check every async operation for error handling
4. Find promises without rejection handling
5. Detect null/undefined access without guards
6. Check IO/network operations for timeout handling
7. Report each finding with file, line, and remediation
8. Only report findings with >=80% confidence
```
## Deviation Rules
- ZERO tolerance for empty catch blocks (always report, always critical)
- Never skip async operation checks
- Always provide remediation suggestions
- Confidence >= 80% for all other findings
MIT license, from a5c-ai/babysitter at commit feb68abe397a.
Security
Scanned Oct 21, 2026 at commit feb68abe397a, with Cisco's open-source skill-scanner.
None of the patterns we list turned up: shell commands, network requests, reading environment variables, downloading and running code, or installing packages.
A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan
Alternatives
Other makers' add-ons that do the same job, next to this one.
| Name | Score | Stars | Context | Updated |
|---|---|---|---|---|
| This onesilent-failure-hunter a5c-ai/babysitter · Subagent | 64 | ★ 1.9k | ≈37 in chat | 2mo ago |
| failure-hunter romiluz13/cc10x · Subagent Both about hunter and failure | 60 | ★ 165 | ≈65 in chat | 28d ago |
| hunter hunter-io/claude-plugin · Plugin Both about hunter | 55 | ★ 8 | not measured | today |
| bizlogic-hunter 0xSteph/pentest-ai-agents · Subagent Both about hunter | 64 | ★ 2.4k | ≈23 in chat | 29d ago |
| domain-hunter ReScienceLab/opc-skills · Skill Both about hunter | 71 | ★ 1.9k | ≈56 always | 16d ago |
| document-hunter bitwize-music-studio/claude-ai-music-skills · Skill Both about hunter | 63 | ★ 572 | ≈54 always | 21d ago |