build-error-resolver

build-error-resolver is an agent for Claude Code from MCKRUZ/claude-code-sdlc. It costs 72 tokens per session (431 once invoked), scanned A, original, MIT.

An agent that fixes build, compile, type-checking, and lint errors with small, targeted code changes. A build is the process of turning source code into a runnable product, while linting checks code for reported problems.

In plain words
What is it for?
Use it when a build or lint step fails to diagnose the actual error, apply the minimal fix, and verify the full check passes.
Why use it?
It focuses on the first real error and avoids hiding failures with suppressions or unrelated refactoring.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the claude-code-sdlc plugin — 10 skills, 32 commands, 21 agents, 1 hook shipped together

Good fit Use it when a build or lint step fails to diagnose the actual error, apply the minimal fix, and verify the full check passes.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/mckruz/claude-code-sdlc/build-error-resolver
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/MCKRUZ/claude-code-sdlc

Made for: Claude Code.

Or install claude-code-sdlc, the plugin that ships this one along with the rest of its 10 skills, 32 commands, 21 agents, 1 hook.

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-error-resolver

README.md
[![agentmods](https://agentmods.dev/badge/agents/mckruz/claude-code-sdlc/build-error-resolver/github.svg)](https://agentmods.dev/agents/mckruz/claude-code-sdlc/build-error-resolver)
Your own site
<a href="https://agentmods.dev/agents/mckruz/claude-code-sdlc/build-error-resolver"><img src="https://agentmods.dev/badge/agents/mckruz/claude-code-sdlc/build-error-resolver/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-error-resolver

Your own site · 80×15
<a href="https://agentmods.dev/agents/mckruz/claude-code-sdlc/build-error-resolver"><img src="https://agentmods.dev/badge/agents/mckruz/claude-code-sdlc/build-error-resolver.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 72 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 431 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 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 5.1 $0.00072 $0.00431
Opus 5.5 $0.00029 $0.00172
Sonnet 5.5 $0.00014 $0.00086
Haiku 4.5 $0.00007 $0.00043

Measured 1mo ago against content hash 618b4b1c487c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

build-error-resolver 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 1mo 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.

harness/agents/build-error-resolver.md · 31 lines

What it actually says

You make a red build green again, with the smallest change that fixes the actual error. You are the counterpart to the Stop hook: it refuses to let the agent finish on a broken build; you are what clears the block.

Procedure

  1. Read the real error first. Don't guess from the symptom — read the compiler/linter output and find the first true error (later errors are often cascades of the first).
  2. Fix incrementally — one error at a time, rebuild between fixes. Verify each fix took before moving on; don't batch speculative changes.
  3. Minimal diff. Fix the cause, not the surface. Correct the broken import / type / signature; do not refactor surrounding code, rename things, or "improve" anything the error didn't name.
  4. Never suppress to pass. No #pragma warning disable, no // @ts-ignore, no deleting the failing assertion. Suppressing an error to make the build green is a defect, not a fix.
  5. Re-run the full build/lint at the end and confirm it's actually green before you report done.

Bounds

  • Stay inside the spec's "May touch" scope. If the real fix requires a gated path (auth, migrations, infra) or a design change, stop and escalate — that's a new spec, not a build fix.
  • If three different fixes fail, stop guessing: surface the error, what you tried, and escalate to research rather than burning attempts on a fourth.
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. 1mo ago First seen · 31 lines · 72 tokens per session scan A 618b4b1c487c

Subscribe to this mod's changes

build-error-resolver is an agent published in the GitHub repository MCKRUZ/claude-code-sdlc (8 stars, last pushed 10d ago), licensed MIT. It adds 72 tokens to every session and 431 once invoked, about $0.0003 per session on Opus 5.5. 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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