build-fix

build-fix is a command for Claude Code, OpenCode from loulanyue/awesome-claude-notes. It costs 9 tokens per session (399 once invoked), scanned A, a copy of build-fix, MIT.

A command for fixing TypeScript build and type-checking errors with small, targeted code changes.

In plain words
What is it for?
Use it to run the TypeScript checker, fix missing imports, invalid types, syntax errors, missing properties, module errors, and unsafe undefined values, then verify the result.
Why use it?
It focuses on resolving reported errors while preserving existing behavior and avoiding unrelated refactoring or new features.

Command for Claude CodeOpenCode

Written for Claude Code and OpenCode: $ARGUMENTS substitution, but also installed under .opencode/. Also seen: agent in frontmatter.

Part of the awesome-claude-notes plugin — 106 skills, 61 commands, 28 agents shipped together

Good fit Use it to run the TypeScript checker, fix missing imports, invalid types, syntax errors, missing properties, module errors, and unsafe undefined values, then verify the result.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/loulanyue/awesome-claude-notes/build-fix
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.

Clone the repo
git clone --depth 1 https://github.com/loulanyue/awesome-claude-notes

Made for: Claude Code, OpenCode.

Or install awesome-claude-notes, the plugin that ships this one along with the rest of its 106 skills, 61 commands, 28 agents.

Wrote 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.

agentmods badge for build-fix

README.md
[![agentmods](https://agentmods.dev/badge/commands/loulanyue/awesome-claude-notes/build-fix/github.svg)](https://agentmods.dev/commands/loulanyue/awesome-claude-notes/build-fix)
Your own site
<a href="https://agentmods.dev/commands/loulanyue/awesome-claude-notes/build-fix"><img src="https://agentmods.dev/badge/commands/loulanyue/awesome-claude-notes/build-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.

agentmods 80×15 button for build-fix

Your own site · 80×15
<a href="https://agentmods.dev/commands/loulanyue/awesome-claude-notes/build-fix"><img src="https://agentmods.dev/badge/commands/loulanyue/awesome-claude-notes/build-fix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 399 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 86% copy Near-identical to another mod 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 5.1 $0.00009 $0.00399
Opus 5 $0.00005 $0.00199
Sonnet 5 $0.00002 $0.00080
Haiku 4.5 $0.00001 $0.00040

Measured 9d ago against content hash 7aa311924b65, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

build-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.

Origin

This is a copy

86% identical to build-fix — 77 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.opencode/commands/build-fix.md · 57 lines

What it actually says

Build Fix Command

Fix build and TypeScript errors with minimal changes: $ARGUMENTS

Your Task

  1. Run type check: npx tsc --noEmit
  2. Collect all errors
  3. Fix errors one by one with minimal changes
  4. Verify each fix doesn't introduce new errors
  5. Run final check to confirm all errors resolved

Approach

DO:

  • ✅ Fix type errors with correct types
  • ✅ Add missing imports
  • ✅ Fix syntax errors
  • ✅ Make minimal changes
  • ✅ Preserve existing behavior
  • ✅ Run tsc --noEmit after each change

DON'T:

  • ❌ Refactor code
  • ❌ Add new features
  • ❌ Change architecture
  • ❌ Use any type (unless absolutely necessary)
  • ❌ Add @ts-ignore comments
  • ❌ Change business logic

Common Error Fixes

Error Fix
Type 'X' is not assignable to type 'Y' Add correct type annotation
Property 'X' does not exist Add property to interface or fix property name
Cannot find module 'X' Install package or fix import path
Argument of type 'X' is not assignable Cast or fix function signature
Object is possibly 'undefined' Add null check or optional chaining

Verification Steps

After fixes:

  1. npx tsc --noEmit - should show 0 errors
  2. npm run build - should succeed
  3. npm test - tests should still pass

IMPORTANT: Focus on fixing errors only. No refactoring, no improvements, no architectural changes. Get the build green with minimal diff.

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. 9d ago First seen · 57 lines · 9 tokens per session scan A 7aa311924b65

Subscribe to this mod's changes

build-fix is a command published in the GitHub repository loulanyue/awesome-claude-notes (270 stars, last pushed 6d ago), licensed MIT. It adds 9 tokens to every session and 399 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to build-fix, differing in 77 lines, and is treated as a copy.