Agent skill

Grace CLI

by osovv in osovv/grace-marketplace

Operate the GRACE 4 CLI for .grace linting, status, module navigation, verification navigation, and file-local semantic markup.

MITAuto-check passedDevelopment

Install Grace CLI

skills CLI
$ npx skills add osovv/grace-marketplace --skill grace-cli -a claude-code

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

GitHub CLI
$ gh skill install osovv/grace-marketplace grace-cli --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/osovv/grace-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/grace/grace-cli .claude/skills/grace-cli && 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
grace-cli
GitHub stars
252
Token cost
~1k tokens
SKILL.md length
498 words
Files
1
Skills in repo
10
Repo updated
First seen
Licence
MIT

At a glance

Operate the GRACE 4 CLI for .grace linting, status, module navigation, verification navigation, and file-local semantic markup.

  • Tasks that involve Linting and formatting
  • Calls bun

What it does

Grace CLI is an agent skill from osovv/grace-marketplace. Operate the GRACE 4 CLI for .grace linting, status, module navigation, verification navigation, and file-local semantic markup.

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Linting and formatting. The repository describes itself as: GRACE (Graph-RAG Anchored Code Engineering): open Agent Skills for contract-driven AI code generation with semantic markup, knowledge graphs, and support for Claude Code, Codex… The licence is MIT.

When your agent uses it

  • Tasks that involve Linting and formatting

Example prompts

  • “/grace-cli”

Requirements

  • Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit 70f5ec4. 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

    Shell commands in SKILL.md call:

    • bun

    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

Grace CLI loads about 1k tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 498 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~34
When it runs · the whole SKILL.md, loaded when a task matches
~1k

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 osovv/grace-marketplace at commit 70f5ec4, republished under its MIT licence (© osovv). 498 words, ~1,009 tokens.

Download SKILL.mdSave it as .claude/skills/grace-cli/SKILL.md (or your agent's skills folder).
name
grace-cli
description
Operate the GRACE 4 CLI for .grace linting, status, module navigation, verification navigation, and file-local semantic markup.
<skill>
<installation_contract>Invoke the installed stable `grace` binary directly. If it is missing, install it with `bun add -g @osovv/grace-cli`. Do not default to `bunx`, `npx`, or the `rc` dist-tag.</installation_contract>
<commands>
- Active-baseline preflight before observed writes: `grace lint --path PROJECT --assertions current`
- Selected baseline: `grace lint --path PROJECT --change C-ID --assertions baseline` (add `--run-commands` when the baseline declares `MustPassCommand`)
- Selected target: `grace lint --path PROJECT --change C-ID --assertions target --run-commands`
- Final execution gate: `grace lint --path PROJECT --change C-ID --assertions final --run-commands`
- Parallel preflight: `grace lint --path PROJECT --parallel-preflight`
- Status: `grace status --path PROJECT --with modules --json`
- Navigation: `grace module find|show`, `grace verification find|show`, and `grace file show`.
</commands>

<command_run_contract> --run-commands executes each declared MustPassCommand value once per lint, fail-fast, with a default 600s per-command timeout (--command-timeout SECONDS overrides, 0 disables). Plan, progress, and per-command result lines go to stderr; the lint report and JSON go to stdout, so piping stdout stays safe. Agents and pipes get compact output by default; interactive terminals see live streamed command output. Force modes with --verbose (live) or --quiet (compact); they are mutually exclusive, and --format json is always compact. Full combined output of every command is stored per run under ~/.cache/grace/run-commands/<project>/runs/<run>/ (respecting XDG_CACHE_HOME) with a machine-readable meta.json; failing commands print a bounded output tail plus the absolute log path. meta.json records the VCS identity the run executed against (head, branch, dirty, all null outside a git repository) plus the writing pid; it is written at run start with status running and rewritten on completion, and a running record whose process is gone is reclassified as killed on a later run. Pruning keeps the newest passing run of every change indefinitely, so the evidence an archived change cites stays on disk; the retention count applies only to non-passing runs — failed, timed out, interrupted, superseded by a newer pass of the same change, unbound to a change, or missing a readable meta.json. The count defaults to 10, is set project-wide by runLogRetention in .grace-lint.json, and is overridden per run by --keepRuns N. --keepRuns 0 keeps no non-passing runs at all, which deletes the current run as soon as it fails and leaves its printed log path dangling. Interrupted runs (SIGINT/SIGTERM) kill the whole command process group, record interrupted status in meta.json, and exit 130.</command_run_contract>

Show full SKILL.md (120 more words)Show less

<lifecycle_command_contract>current evaluates active approved baselines and is not end-state evidence. Keep MustPassCommand entries as leaf project checks; do not nest grace lint, grace status, or another GRACE lifecycle command inside plan assertions. Run selected target/final lint externally.</lifecycle_command_contract>

<failure_contract> Lint, status, and navigation commands validate before returning records. JSON argument/runtime failures are one { "schemaVersion": "1.0.0", "ok": false, "error": { ... } } object on stdout. Text failures are one concise actionable line with a nonzero exit code and no stack trace. </failure_contract>

<runtime_contract> TypeScript/JavaScript analysis is bundled. Python and Dart governed files require their runtimes on PATH; missing runtimes fail closed with actionable analysis.runtime-missing diagnostics instead of silently dropping parity checks. </runtime_contract>

<migration_boundary>GRACE 4 commands do not dual-validate legacy GRACE 3 docs. Use grace-migrate.</migration_boundary> </skill>

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

Files

Just SKILL.md in skills/grace/grace-cli of osovv/grace-marketplace.

Open the folder on GitHubat commit 70f5ec4

Compare with similar skills

Grace CLI 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.

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Babysit PR To Pass CIsgl-project/sglang37k2 repos~3kAutomated safety check: PassApache-2.0
Rust Best Practicesfarm-fe/farm5.6k3 repos~1.1kAutomated safety check: PassMIT

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Categories

Questions about Grace CLI

What does Grace CLI do?

Operate the GRACE 4 CLI for .grace linting, status, module navigation, verification navigation, and file-local semantic markup. Grace CLI is an agent skill from osovv/grace-marketplace.grace linting, status, module navigation, verification navigation, and file-local semantic markup.

When should I use Grace CLI?

Grace CLI fits situations like: tasks that involve Linting and formatting.

How do I install Grace CLI in Claude Code?

Run `npx skills add osovv/grace-marketplace --skill grace-cli -a claude-code`. Or copy the skill folder (skills/grace/grace-cli in osovv/grace-marketplace) into .claude/skills/grace-cli in your project. Claude Code loads it when a task matches its description.

How do I install Grace CLI in Codex?

Run `npx skills add osovv/grace-marketplace --skill grace-cli -a codex`. Or copy the skill folder (skills/grace/grace-cli in osovv/grace-marketplace) into .agents/skills/grace-cli in your project. Codex loads it when a task matches its description.

Can I use Grace CLI 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 osovv/grace-marketplace --skill grace-cli -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/grace-cli, .gemini/skills/grace-cli, .github/skills/grace-cli and .opencode/skills/grace-cli in your project.

What does Grace CLI need to run?

Going by SKILL.md and its folder, Grace CLI needs the command-line tools its instructions call (bun). Our summary lists: Python 3.

Does Grace CLI 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 Grace CLI 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 Grace CLI use?

Grace CLI 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 Grace CLI use?

About 1k tokens (SKILL.md is roughly 4k 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 Grace CLI?

Skills that share tags, products or a category with Grace CLI: Install Anti-Slop Oxlint Rules (dmmulroy/anti-slop, 5.3k stars), Summarise Ecosystem Results (astral-sh/ruff, 50k stars), Minimizing Ty Ecosystem Changes (astral-sh/ruff, 50k stars) and Babysit PR To Pass CI (sgl-project/sglang, 37k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Grace CLI?

osovv (a GitHub user) maintains it in osovv/grace-marketplace, which has 252 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on September 24, 2026.

Source: osovv/grace-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.