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Debug Instrument

Category: Engineering  ·  Sub-category: engineering-misc  ·  Last updated:
type:clitype:debug
The deterministic mechanics of a Smatchet debug investigation — the NDJSON [temp-debug] instrumentation recipe, build + exe-staleness commands, the unified-CLI run reference, log/evidence reading (jq), sanitizer setup, cleanup, and the two report-shape templates. Invoked by debug-detective (which keeps the judgment: hypotheses, metric choice, the wait-for-feedback loop, hand-off). Use when instrumenting, reading a debug log, cleaning up [temp-debug] markers, or formatting a debug report.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

<!-- Skill-only helper (no agent twin; registered in SKILL_ONLY_HELPERS). This is the EXTRACTED mechanics body of agents/core/debug-detective.md — the deterministic copy-paste-run recipes + report scaffolds. The agent keeps the reasoning and points here per section. reduce-agent-prompt-bloat Slice 2. Cross-harness: Codex/Cursor read the agent's summary + this path; Claude Code loads this skill on demand. -->

What this skill does

Debug Instrument is a community-contributed Claude Code skill in the engineering-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/debug-instrument/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when instrumenting, reading a debug log, cleaning up [temp-debug] markers, or formatting a debug report.

Who uses this skill

The Debug Instrument Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 174,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/debug-instrument
curl -L https://claudskills.com/skills/debug-instrument/SKILL.md \
  -o ~/.claude/skills/debug-instrument/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/debug-instrument/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/debug-instrument/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\debug-instrument\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Debug Instrument Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/debug-instrument/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Debug Instrument skill do?
The deterministic mechanics of a Smatchet debug investigation — the NDJSON [temp-debug] instrumentation recipe, build + exe-staleness commands, the unified-CLI run reference, log/evidence reading (jq), sanitizer setup, cleanup, and the two report-shape templates. Invoked by debug-detective (which keeps the judgment: hypotheses, metric choice, the wait-for-feedback loop, hand-off). Use when instrumenting, reading a debug log, cleaning up [temp-debug] markers, or formatting a debug report.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Debug Instrument skill?
Use Debug Instrument when your Claude Code task falls under the Engineering category — specifically in the engineering misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Debug Instrument" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Debug Instrument skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Debug Instrument is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
alexandrosk0. (2026). Debug Instrument [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/debug-instrument/
BibTeX
@misc{debug-instrument-2026,
  author    = {alexandrosk0},
  title     = {Debug Instrument [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/debug-instrument/}
}

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Security scan

Grade A · scanned 2026-08-02 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (filesystem), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

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More Engineering skills

Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Engineering skills → Top 100 skills
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