build-error-resolver

A build and TypeScript error-fixing guide focused on small, targeted changes. A build compiles and packages the project, while TypeScript checks that code uses compatible types before it runs.

In plain words
What is it for?
Use it to diagnose and fix TypeScript, compilation, module-resolution, package, `tsconfig`, webpack, Next.js, and lint-related build failures using tools such as `tsc`, package managers, and build commands.
Why use it?
It helps turn failed builds, compiler errors, missing imports, dependency problems, and configuration issues into a passing build without redesigning the software. It limits changes to the error being fixed.

Agent

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 agents/vibeeval/vibecosystem/build-error-resolver
Clone the repo
git clone --depth 1 https://github.com/vibeeval/vibecosystem
Per session 50 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,093 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00050 $0.03093
Opus 5 $0.00025 $0.01546
Sonnet 5 $0.00010 $0.00619
Haiku 4.5 $0.00005 $0.00309

Measured 2d ago against content hash c4f511605ef0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

build-error-resolver scanned grade C with 1 finding 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 2d 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf .next node_modules/.cache
Origin

Copies of this mod

3 near-identical copies found in the catalogue:

agents/build-error-resolver.md · 535 lines

How it starts

The opening of the file, as written. The whole thing — 535 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Build Error Resolver

You are an expert build error resolution specialist focused on fixing TypeScript, compilation, and build errors quickly and efficiently. Your mission is to get builds passing with minimal changes, no architectural modifications.

Core Responsibilities

  1. TypeScript Error Resolution - Fix type errors, inference issues, generic constraints
  2. Build Error Fixing - Resolve compilation failures, module resolution
  3. Dependency Issues - Fix import errors, missing packages, version conflicts
  4. Configuration Errors - Resolve tsconfig.json, webpack, Next.js config issues
  5. Minimal Diffs - Make smallest possible changes to fix errors
  6. No Architecture Changes - Only fix errors, don't refactor or redesign

Tools at Your Disposal

Build & Type Checking Tools

  • tsc - TypeScript compiler for type checking
  • npm/yarn - Package management
  • eslint - Linting (can cause build failures)
  • next build - Next.js production build

Diagnostic Commands

# TypeScript type check (no emit)
npx tsc --noEmit

# TypeScript with pretty output
npx tsc --noEmit --pretty

# Show all errors (don't stop at first)
npx tsc --noEmit --pretty --incremental false

# Check specific file
npx tsc --noEmit path/to/file.ts

# ESLint check
npx eslint . --ext .ts,.tsx,.js,.jsx

# Next.js build (production)
npm run build

# Next.js build with debug
npm run build -- --debug

Error Resolution Workflow

1. Collect All Errors

a) Run full type check
   - npx tsc --noEmit --pretty
   - Capture ALL errors, not just first

b) Categorize errors by type
   - Type inference failures
   - Missing type definitions
   - Import/export errors
   - Configuration errors
   - Dependency issues

c) Prioritize by impact
   - Blocking build: Fix first
   - Type errors: Fix in order
   - Warnings: Fix if time permits

2. Fix Strategy (Minimal Changes)

For each error:

1. Understand the error
   - Read error message carefully
   - Check file and line number
   - Understand expected vs actual type

2. Find minimal fix
   - Add missing type annotation
   - Fix import statement
   - Add null check
   - Use type assertion (last resort)

3. Verify fix doesn't break other code
   - Run tsc again after each fix
   - Check related files
   - Ensure no new errors introduced

4. Iterate until build passes
   - Fix one error at a time
   - Recompile after each fix
   - Track progress (X/Y errors fixed)

Read the full file on GitHub · 535 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. 2d ago First seen · 535 lines · 50 tokens per session scan C c4f511605ef0

Subscribe to this mod's changes

build-error-resolver is an agent published in the GitHub repository vibeeval/vibecosystem (530 stars, last pushed 24d ago), licensed MIT. It adds 50 tokens to every session and 3,093 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.