fix-types

Installation
SKILL.md

[IMPORTANT] Use TaskCreate to 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.md for full protocol and checklists.

Evidence-Based Reasoning — Speculation is FORBIDDEN. Every claim needs file:line proof. 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.md for 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)

Skill Variant: Variant of /fix — TypeScript/type error resolution.

Quick Summary

Goal: Fix TypeScript compilation errors and type mismatches across the codebase.

Workflow:

  1. Collect — Run tsc --noEmit or nx build to gather type errors
  2. Analyze — Classify errors (missing types, wrong signatures, import issues)
  3. Fix — Apply type-safe fixes without any casts where possible

Key Rules:

  • Debug Mindset: every claim needs file:line evidence
  • Prefer proper typing over any or type assertions
  • Fix root cause (wrong interface, missing export) not symptoms

[MANDATORY] Read .claude/skills/shared/root-cause-debugging-protocol.md BEFORE proposing any fix. Responsibility attribution and data lifecycle tracing are required.

⚠️ Validate Before Fix (NON-NEGOTIABLE): After identifying type errors and root cause, MUST present findings + proposed fix to user via AskUserQuestion and get explicit approval BEFORE any code changes. No silent fixes.

Run bun run typecheck or tsc or npx tsc and fix all type errors.

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:line evidence
  • 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.

Rules

  • Fix all of type errors and repeat the process until there are no more type errors.

  • Do not use any just to pass the type check.

  • 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 TaskCreate BEFORE starting
  • MUST search codebase for 3+ similar patterns before creating new code
  • MUST cite file:line evidence 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.md before starting
  • MUST READ .claude/skills/shared/evidence-based-reasoning-protocol.md before starting
Weekly Installs
34
GitHub Stars
6
First Seen
Feb 10, 2026
Installed on
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