Agent skill

Run Tests

by dgillis in dgillis/emacs-codex-ide

Run the codex-ide test suite from this repository. An agent skill from dgillis/emacs-codex-ide.

MITAuto-check passedTesting & QA

Install Run Tests

skills CLI
$ npx skills add dgillis/emacs-codex-ide --skill run-tests -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install dgillis/emacs-codex-ide run-tests --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/dgillis/emacs-codex-ide.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/run-tests .claude/skills/run-tests && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
run-tests
GitHub stars
108
Token cost
~203 tokens
SKILL.md length
86 words
Files
2
Skills in repo
4
Repo updated
First seen
Licence
MIT

At a glance

Run the codex-ide test suite from this repository. An agent skill from dgillis/emacs-codex-ide.

  • Works in 3 steps: Run ./bin/run-tests.sh with no arguments… → Pass --test-file FILE one or more times… → Report the failing command, failing test…
  • An agent needs to validate changes by running bin/run-tests.sh
  • SKILL.md covers Workflow and Notes
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Run Tests is an agent skill from dgillis/emacs-codex-ide. Run the codex-ide test suite from this repository. Use this skill when an agent needs to validate changes by running bin/run-tests.sh, either for the full suite or for one or more specific ERT files via --test-file FILE.

Its SKILL.md is about 200 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).

It sits in Testing & QA, covering Test generation. The repository describes itself as: Codex IDE integration for Emacs. The licence is MIT.

When your agent uses it

  • An agent needs to validate changes by running bin/run-tests.sh
  • Either for the full suite
  • More specific ERT files via --test-file FILE

Example prompts

  • “/run-tests”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Run ./bin/run-tests.sh with no arguments to execute the full ERT suite.
  2. Pass --test-file FILE one or more times to scope the run to specific files.
  3. Report the failing command, failing test file, and the first useful error when tests fail.

What it can do on your machine

Read from SKILL.md and the folder at commit 5eba84d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Run Tests loads about 203 tokens when it runs. Until then it costs about 59 tokens; SKILL.md has 86 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~59
When it runs · the whole SKILL.md, loaded when a task matches
~203

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from dgillis/emacs-codex-ide at commit 5eba84d, republished under its MIT licence (© dgillis). 86 words, ~203 tokens.

Download SKILL.mdSave it as .claude/skills/run-tests/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
run-tests
description
Run the codex-ide test suite from this repository. Use this skill when an agent needs to validate changes by running `bin/run-tests.sh`, either for the full suite or for one or more specific ERT files via `--test-file FILE`.

Run Tests

Use this skill to execute the repository's canonical test runner.

Workflow

  1. Run ./bin/run-tests.sh with no arguments to execute the full ERT suite.
  2. Pass --test-file FILE one or more times to scope the run to specific files.
  3. Report the failing command, failing test file, and the first useful error when tests fail.

Notes

  • Prefer this skill over ad hoc emacs --batch invocations when the goal is normal project validation.
  • Use the explicit repo-root path above; do not reinterpret it relative to SKILL.md.

© dgillis, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in .agents/skills/run-tests of dgillis/emacs-codex-ide.

  • SKILL.md
  • agents/openai.yaml

Open the folder on GitHubat commit 5eba84d

Compare with similar skills

Run Tests next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Run Tests compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Run Tests this skilldgillis/emacs-codex-ide108—~203Automated safety check: PassMIT
Emcaklofas/kicad-happy1.4k1 repos~2.8kAutomated safety check: PassMIT
Swig Testswig/swig6.3k—~2.3kAutomated safety check: PassCustom licence
Generate Test Cases342164796/generate-test-cases1191 repos~2.9kAutomated safety check: PassNone
Verify Cc Safety Netkenryu42/cc-safety-net1.6k—~2kAutomated safety check: PassMIT
Wioworkersio/skills190—~5.8kAutomated safety check: PassMIT

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Categories

Questions about Run Tests

What does Run Tests do?

Run the codex-ide test suite from this repository. An agent skill from dgillis/emacs-codex-ide. Run Tests is an agent skill from dgillis/emacs-codex-ide. Run the codex-ide test suite from this repository.

When should I use Run Tests?

Run Tests fits situations like: an agent needs to validate changes by running bin/run-tests.sh; either for the full suite; more specific ERT files via --test-file FILE.

How do I install Run Tests in Claude Code?

Run `npx skills add dgillis/emacs-codex-ide --skill run-tests -a claude-code`. Or copy the skill folder (.agents/skills/run-tests in dgillis/emacs-codex-ide) into .claude/skills/run-tests in your project. Claude Code loads it when a task matches its description.

How do I install Run Tests in Codex?

Run `npx skills add dgillis/emacs-codex-ide --skill run-tests -a codex`. Or copy the skill folder (.agents/skills/run-tests in dgillis/emacs-codex-ide) into .agents/skills/run-tests in your project. Codex loads it when a task matches its description.

Can I use Run Tests in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add dgillis/emacs-codex-ide --skill run-tests -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/run-tests, .gemini/skills/run-tests, .github/skills/run-tests and .opencode/skills/run-tests in your project.

What does Run Tests need to run?

SKILL.md names no scripts, command-line tools or credentials: Run Tests is instructions for the agent only.

Does Run Tests access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Run Tests safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Run Tests use?

Run Tests is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Run Tests use?

About 203 tokens (SKILL.md is roughly 812 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Run Tests?

Skills that share tags, products or a category with Run Tests: Emc (aklofas/kicad-happy, 1.4k stars), Swig Test (swig/swig, 6.3k stars), Generate Test Cases (342164796/generate-test-cases, 119 stars) and Verify Cc Safety Net (kenryu42/cc-safety-net, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Run Tests?

dgillis (a GitHub user) maintains it in dgillis/emacs-codex-ide, which has 108 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on July 30, 2026.

Source: dgillis/emacs-codex-ide on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.