fix

A troubleshooting and repair workflow for software that is failing or behaving unexpectedly. It examines logs, runtime errors, and crash output to identify the underlying cause before applying a fix.

In plain words
What is it for?
Use it for crashes, blank screens, console errors, and other unexpected behavior when you need root-cause analysis and a targeted fix.
Why use it?
It turns vague errors or broken behavior into a structured diagnosis and records the evidence behind the repair.

Skill for Claude CodeCodex

Part of the devops plugin — 23 skills, 12 agents, 5 hooks, 3 MCP servers shipped together

Install

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.

agentmods
npx agentmods add skills/jerry0022/dotclaude/fix
Any agent
npx skills add Jerry0022/dotclaude --skill fix
Clone the repo
git clone --depth 1 https://github.com/Jerry0022/dotclaude

Made for: Claude Code, Codex.

Or install devops, the plugin that ships this one along with the rest of its 23 skills, 12 agents, 5 hooks, 3 MCP servers.

Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,459 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00102 $0.01459
Opus 5 $0.00051 $0.00730
Sonnet 5 $0.00020 $0.00292
Haiku 4.5 $0.00010 $0.00146

Measured 3d ago against content hash 44618d261b3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 3d 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.

plugins/devops/skills/fix/SKILL.md · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fix

Diagnose and fix the issue: $ARGUMENTS

Step 0 — Load Extensions

Check for optional overrides. Use Glob to verify each path exists before reading. Do NOT call Read on files that may not exist — skip missing files silently (no output).

  1. Global: ~/.claude/skills/fix/SKILL.md + reference.md
  2. Project: {project}/.claude/skills/fix/SKILL.md + reference.md
  3. Merge: project > global > plugin defaults

Project extensions define framework-specific log paths (e.g., Electron logs in %APPDATA%/<app>/logs/, Angular dev server console, etc.).

  1. Codex context: Read {PLUGIN_ROOT}/deep-knowledge/codex-integration.md — this skill auto-invokes Codex on unclear root cause (§2 in that doc). Codex MUST be called via {PLUGIN_ROOT}/scripts/codex-safe.sh (5-min hard timeout, see "Hard Timeout & Failure-Tolerance" section), NEVER via the /codex:rescue Agent tool. Detect Codex availability now so Step 6 can act on it.

Step 1 — Triage: what broke?

If $ARGUMENTS is empty or vague, ask ONE focused question via AskUserQuestion:

  • "Was ist passiert?" with options like: "Error in console", "Blank screen", "Crash on startup", "Wrong behavior"
  • Do NOT ask multiple questions — get the symptom, then investigate.

Step 2 — Check recent changes first

The most common cause of bugs is recent code changes. Before reading logs:

git log --oneline -5
git diff HEAD~1 --stat

If the symptom appeared after a specific commit, focus investigation there.

Step 3 — Discover and read logs

Search for logs automatically — don't assume fixed paths:

  1. Glob for **/*.log and **/logs/** in the project root
  2. Check project extension for framework-specific log locations
  3. Read the most recent log file first — don't read all unless needed

Step 4 — Locate the failure point

Search for the error string via Grep. Follow the stack trace to the originating file and line.

Step 5 — Root cause analysis

Find the actual broken invariant — not just the symptom. Ask:

  • What assumption is violated?
  • What changed that broke this assumption?
  • Is this a data issue, a logic issue, or a configuration issue?

Read the full file on GitHub · 128 lines

Changes

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.

  1. 3d ago First seen · 128 lines · 102 tokens per session scan A 44618d261b3a

Subscribe to this mod's changes

fix is a skill published in the GitHub repository Jerry0022/dotclaude (4 stars, last pushed 3d ago), licensed MIT. It adds 102 tokens to every session and 1,459 once invoked, about $0.0005 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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