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 skills add bobmatnyc/claude-mpm-skills --skill bug-fixgit clone --depth 1 https://github.com/bobmatnyc/claude-mpm-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/bug-fix)<a href="https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/bug-fix"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/bug-fix/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/bug-fix"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/bug-fix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
What 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 5.1 | $0.00018 | $0.03073 |
| Opus 5 | $0.00009 | $0.01537 |
| Sonnet 5 | $0.00004 | $0.00615 |
| Haiku 4.5 | $0.00002 | $0.00307 |
Grade A, and why
bug-fix 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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 464 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bug Fix Verification
Systematic workflow for verifying bug fixes to ensure quality and prevent regressions.
When to Use This Skill
Use this skill when:
- Fixing a reported bug
- Creating PR for bug fix
- Need to document bug fix verification
- Want to ensure fix doesn't introduce regressions
- Need structured approach to bug resolution
Why Bug Fix Verification Matters
Problems It Solves
- ❌ Fixing symptoms instead of root cause
- ❌ Introducing new bugs while fixing old ones
- ❌ Incomplete testing of edge cases
- ❌ No proof that bug is actually fixed
- ❌ Poor documentation of fix reasoning
Benefits
- ✅ Confirms bug is truly fixed (not masked)
- ✅ Documents root cause analysis
- ✅ Prevents regression with tests
- ✅ Provides clear evidence for stakeholders
- ✅ Improves team knowledge of codebase
Bug Fix Workflow
Step 1: Reproduce Before Fix
Critical: Never fix a bug without first reproducing it.
Reproduction Checklist
- Document exact steps to reproduce
- Capture error message/behavior with screenshots
- Note frequency (100% reproducible, intermittent, etc.)
- Video recording if UI-related or complex interaction
- Identify affected versions/environments
- Note any workarounds users have found
- Verify bug exists in clean environment (not just local)
Reproduction Documentation Template
## Bug Reproduction
### Steps to Reproduce
1. Navigate to `/dashboard`
2. Click "Export Data" button
3. Select date range: Jan 1 - Dec 31
4. Click "Generate Report"
### Expected Behavior
- Report downloads as CSV file
- File contains all transactions for date range
- Download completes in < 5 seconds
### Actual Behavior
- Error appears: "Failed to generate report"
- Console error: `TypeError: Cannot read property 'map' of undefined`
- No file downloads
- Issue occurs 100% of the time
### Environment
- Browser: Chrome 120.0.6099.109
- OS: macOS 14.2
- User Role: Admin
- Data Size: ~10,000 transactions
### Screenshots


What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 464 lines · 18 tokens per session scan A 591fbc4cea50
bug-fix is a skill published in the GitHub repository bobmatnyc/claude-mpm-skills (75 stars, last pushed 1mo ago), licensed MIT. It adds 18 tokens to every session and 3,073 once invoked, about $0.0001 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 2026-09-03.
Other skills, from other repositories
systematic-debugging
4-phase root cause debugging: understand bugs before fixing.
langsmith-observability
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experimental-code-coverage-local-debugger
Runs code coverage locally via Universal Test Runner (UTR) or helper scripts, mimicking LUCI trybots. Activate when CQ tryjobs fail or underreport coverage, to test local GN/recipe repairs before uploading, or to debug hermetic crashes.
adversarial-reviewer
Adversarial code review that assumes bugs exist and hunts for them. Use when asked to review code, find bugs, audit for correctness, stress-test a PR, or when someone says "tear this apart" or "what's wrong with this". Give no benefit of the doubt — every line is guilty until proven innocent.
cli-e2e
Write, modify, or debug Docker-based Composio CLI end-to-end tests under ts/e2e-tests/cli, including binary invocation, fixture isolation, output assertions, and package manifests. Use for CLI E2E test suites only; use cli-command for CLI source implementation.
work
Deliver one maintainer-approved EmDash issue, choosing the bug-fix path for a defect and the direct implementation path for an enhancement or task.