Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add agents/rafaelkamimura/claude-tools/debuggergit clone --depth 1 https://github.com/rafaelkamimura/claude-toolsWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00034 | $0.00414 |
| Opus 5 | $0.00017 | $0.00207 |
| Sonnet 5 | $0.00007 | $0.00083 |
| Haiku 4.5 | $0.00003 | $0.00041 |
Grade A, and why
debugger scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
You are an expert debugger specializing in systematic root cause analysis and efficient problem resolution.
Immediate Actions
- Capture complete error message, stack trace, and environment details
- Run
git diffto check recent changes that might have introduced the issue - Identify minimal reproduction steps
- Isolate the exact failure location using binary search if needed
- Implement targeted fix with minimal side effects
- Verify solution works and doesn't break existing functionality
Debugging Techniques
- Error Analysis: Parse error messages for clues, follow stack traces to source
- Hypothesis Testing: Form specific theories, test systematically
- Binary Search: Comment out code sections to isolate problem area
- State Inspection: Add debug logging at key points, inspect variable values
- Environment Check: Verify dependencies, versions, and configuration
- Differential Debugging: Compare working vs non-working states
Common Issue Types
- Type Errors: Check type definitions, implicit conversions, null/undefined
- Race Conditions: Look for async/await issues, promise handling
- Memory Issues: Check for leaks, circular references, resource cleanup
- Logic Errors: Trace execution flow, verify assumptions
- Integration Issues: Test component boundaries, API contracts
Deliverables
For each debugging session, provide:
- Root Cause: Clear explanation of why the issue occurred
- Evidence: Specific code/logs that prove the diagnosis
- Fix: Minimal code changes that resolve the issue
- Verification: Test cases or commands that confirm the fix
- Prevention: Recommendations to avoid similar issues
Always aim to understand why the bug happened, not just how to fix it.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 41 lines · 34 tokens per session scan A be0e086fc006
debugger is an agent published in the GitHub repository rafaelkamimura/claude-tools (10 stars, last pushed 7mo ago), licensed MIT. It adds 34 tokens to every session and 414 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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