Agent skill
fix-logs
[Implementation] Analyze logs and fix issues
Install this agent skill to your Project
npx add-skill https://github.com/duc01226/EasyPlatform/tree/main/.claude/skills/fix-logs
SKILL.md
[IMPORTANT] Use
TaskCreateto break ALL work into small tasks BEFORE starting — including tasks for each file read. This prevents context loss from long files. For simple tasks, AI MUST ask user whether to skip.
Understand Code First — Search codebase for 3+ similar implementations BEFORE writing any code. Read existing files, validate assumptions with grep evidence, map dependencies via graph trace. Never invent new patterns when existing ones work. MUST READ
.claude/skills/shared/understand-code-first-protocol.mdfor full protocol and checklists.
Evidence-Based Reasoning — Speculation is FORBIDDEN. Every claim needs
file:lineproof. Confidence: >95% recommend freely, 80-94% with caveats, <80% DO NOT recommend — gather more evidence. Cross-service validation required for architectural changes. MUST READ.claude/skills/shared/evidence-based-reasoning-protocol.mdfor full protocol and checklists.
docs/project-reference/domain-entities-reference.md— Domain entity catalog, relationships, cross-service sync (read when task involves business entities/models) (content auto-injected by hook — check for [Injected: ...] header before reading)
Estimation Framework — SP scale: 1(trivial) → 2(small) → 3(medium) → 5(large) → 8(very large, high risk) → 13(epic, SHOULD split) → 21(MUST split). MUST provide
story_pointsandcomplexityestimate after investigation. MUST READ.claude/skills/shared/estimation-framework.mdfor full protocol and checklists.
Skill Variant: Variant of
/fix— log-based troubleshooting and error analysis.
Quick Summary
Goal: Analyze application logs to diagnose and fix runtime errors or unexpected behavior.
Workflow:
- Collect — Gather relevant log output (error messages, stack traces, timestamps)
- Trace — Map log entries to source code locations
- Fix — Apply fix based on traced execution path
Key Rules:
- Debug Mindset: every claim needs
file:lineevidence - Focus on log patterns: stack traces, error codes, timing anomalies
- Cross-reference logs with source code to find actual root cause
[MANDATORY] Read
.claude/skills/shared/root-cause-debugging-protocol.mdBEFORE proposing any fix. Responsibility attribution and data lifecycle tracing are required.
IMPORTANT: Analyze the skills catalog and activate the skills that are needed for the task during the process.
Debug Mindset (NON-NEGOTIABLE)
Be skeptical. Apply critical thinking, sequential thinking. Every claim needs traced proof, confidence percentages (Idea should be more than 80%).
- Do NOT assume the first hypothesis is correct — verify with actual code traces
- Every root cause claim must include
file:lineevidence - If you cannot prove a root cause with a code trace, state "hypothesis, not confirmed"
- Question assumptions: "Is this really the cause?" → trace the actual execution path
- Challenge completeness: "Are there other contributing factors?" → check related code paths
- No "should fix it" without proof — verify the fix addresses the traced root cause
⚠️ MANDATORY: Confidence & Evidence Gate
MANDATORY IMPORTANT MUST declare Confidence: X% with evidence list + file:line proof for EVERY claim.
95%+ recommend freely | 80-94% with caveats | 60-79% list unknowns | <60% STOP — gather more evidence.
Mission
$ARGUMENTS
⚠️ Validate Before Fix (NON-NEGOTIABLE): After root cause analysis + plan creation, MUST present findings + proposed fix to user via
AskUserQuestionand get explicit approval BEFORE any code changes. No silent fixes.
Workflow
- Check if
./logs.txtexists:- If missing, set up permanent log piping in project's script config (
package.json,Makefile,pyproject.toml, etc.):- Bash/Unix: append
2>&1 | tee logs.txt - PowerShell: append
*>&1 | Tee-Object logs.txt
- Bash/Unix: append
- Run the command to generate logs
- If missing, set up permanent log piping in project's script config (
- Use
debuggersubagent to analyze./logs.txtand find root causes:- Use
Grepwithhead_limit: 30to read only last 30 lines (avoid loading entire file) - If insufficient context, increase
head_limitas needed - External Memory: Write log analysis to
.ai/workspace/analysis/{issue-name}.analysis.md. Re-read before fixing.
- Use
- Use
scoutsubagent to analyze the codebase and find the exact location of the issues, then report back to main agent. - Use
plannersubagent to create an implementation plan based on the reports, then report back to main agent. - 🛑 Present root cause + fix plan →
AskUserQuestion→ wait for user approval. - Start implementing the fix based the reports and solutions.
- Use
testeragent to test the fix and make sure it works, then report back to main agent. - Use
code-reviewersubagent to quickly review the code changes and make sure it meets requirements, then report back to main agent. - If there are issues or failed tests, repeat from step 3.
- After finishing, respond back to user with a summary of the changes and explain everything briefly, guide user to get started and suggest the next steps.
- After fixing, MUST run
/prove-fix— build code proof traces per change with confidence scores. Never skip.
Closing Reminders
- MUST break work into small todo tasks using
TaskCreateBEFORE starting - MUST search codebase for 3+ similar patterns before creating new code
- MUST cite
file:lineevidence for every claim (confidence >80% to act) - MUST add a final review todo task to verify work quality
- MUST STOP after 3 failed fix attempts — report outcomes, ask user before #4 MANDATORY IMPORTANT MUST READ the following files before starting:
- MUST READ
.claude/skills/shared/understand-code-first-protocol.mdbefore starting - MUST READ
.claude/skills/shared/evidence-based-reasoning-protocol.mdbefore starting - MUST READ
.claude/skills/shared/estimation-framework.mdbefore starting
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