common-skills: Skill for Claude Code

.agents/skills/fix-errors/SKILL.md

fix-errors is a skill for Claude Code, Codex from warpdotdev/common-skills. It costs 65 tokens per session (1,331 once invoked), scanned A, original, MIT.

A guide for fixing compilation errors, formatting and linting problems, and failed tests in the Warp Rust codebase.

In plain words
What is it for?
Use it to debug Rust and WebAssembly builds, Clippy warnings, formatting failures, C or C++ formatting issues, and test failures.
Why use it?
It helps identify and correct problems that prevent presubmit checks from passing before a pull request.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is warpdotdev/common-skills's own configuration. It tells Claude Code and Codex how to work on common-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything common-skills configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is ./script/presubmit.

Reuse

Borrowing it

Nothing to install: this file belongs to warpdotdev/common-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/warpdotdev/common-skills/main/.agents/skills/fix-errors/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/warpdotdev/common-skills

Made for: Claude Code, Codex.

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Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,331 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. Third-party audits
  • Socket pass 16 Sept 2026
  • Snyk pass 16 Sept 2026
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00065 $0.01331
Opus 5.5 $0.00026 $0.00532
Sonnet 5.5 $0.00013 $0.00266
Haiku 4.5 $0.00006 $0.00133

Measured 1mo ago against content hash 64765d525a93, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

fix-errors 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.

.agents/skills/fix-errors/SKILL.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

fix-errors

Fix compilation errors, linting issues, and test failures in the warp Rust codebase.

Overview

This skill helps resolve common issues encountered during development, including:

  • Compilation errors (unused imports, type mismatches, etc.)
  • Linting failures (clippy warnings)
  • Formatting violations
  • WASM-specific errors
  • Test failures

Fix the reported failure with the narrowest useful command. Do not turn a targeted repair into repeated full-workspace validation.

Full Presubmit

Run the full presubmit only when the user, task, or approved spec explicitly requires it:

./script/presubmit

This runs formatting checks, linting, and all tests. It is intentionally broader and more expensive than the default implementation workflow.

Individual Checks

Run checks separately when debugging specific issues:

Rust formatting:

cargo fmt -- --check

Clippy (full workspace):

cargo clippy --workspace --all-targets --tests -- -D warnings

WASM Clippy:

cargo clippy --target wasm32-unknown-unknown --profile release-wasm-debug_assertions --no-deps

Objective-C/C/C++ formatting:

./script/run-clang-format.py -r --extensions 'c,h,cpp,m' ./crates/warpui/src/ ./app/src/

All tests:

cargo nextest run --no-fail-fast --workspace --exclude command-signatures-v2
cargo nextest run -p warp_completer --features v2

Doc tests:

cargo test --doc

Running Specific Tests

Single package:

cargo nextest run -p <package_name>

Filter by test name:

cargo nextest run -E 'test(<substring>)'

Specific package with filter:

cargo nextest run -p <package_name> -E 'test(<substring>)'

With output (no capture):

cargo nextest run -p <package> --nocapture

Common Error Types

Unused Imports

Remove unused use statements identified by the compiler.

Unused Constants

Remove constants that are defined but never used.

Read the full file on GitHub · 182 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. 1mo ago Changed · +1 lines 64765d525a93
  2. 1mo ago First seen · 181 lines · 65 tokens per session scan A 1cae403c9e81

Subscribe to this mod's changes

fix-errors is a skill published in the GitHub repository warpdotdev/common-skills (636 stars, last pushed today), licensed MIT. It adds 65 tokens to every session and 1,331 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 2026-08-30.