Agent skill

Grace Migrate

by osovv in osovv/grace-marketplace

Agent-applied GRACE 3 to GRACE 4 migration workflow. An agent skill from osovv/grace-marketplace.

MITAuto-check passedDevelopment

Install Grace Migrate

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

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

GitHub CLI
$ gh skill install osovv/grace-marketplace grace-migrate --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-migrate .claude/skills/grace-migrate && 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-migrate
GitHub stars
252
Token cost
~706 tokens
SKILL.md length
346 words
Files
4 (incl. references)
Skills in repo
10
Repo updated
First seen
Licence
MIT

At a glance

Agent-applied GRACE 3 to GRACE 4 migration workflow. An agent skill from osovv/grace-marketplace.

  • Works in 9 steps: Detect legacy docs and current .grace… → Inventory legacy source paths and create… → Map legacy requirements, technology,… → …
  • Development work in your project
  • Calls git

What it does

Grace Migrate is an agent skill from osovv/grace-marketplace. Agent-applied GRACE 3 to GRACE 4 migration workflow. CLI validates the result but does not convert or delete files.

Its SKILL.md is about 710 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `agents/openai.yaml` and `references/migration-checklist.md`).

It sits in Development. It works with Git. 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

  • Development work in your project

Example prompts

  • “/grace-migrate”

Workflow steps

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

  1. Detect legacy docs and current .grace state. If .grace already exists, stop and ask whether migration should merge, replace, or abort.
  2. Inventory legacy source paths and create or verify a restorable backup. Record source coverage and backup evidence in the report.
  3. Map legacy requirements, technology, graph, verification, and operational content into the GRACE 4 layout. List ambiguities and…
  4. Produce references/migration-report-template.xml, review references/migration-checklist.md, and ask for explicit approval before writing…
  5. Write .grace, then run grace lint --path --assertions current and grace status --path --json. Require status projectKind grace4 with no…
  6. If validation is not successful or generated coverage is incomplete, retain all legacy sources and stop.
  7. Detect git availability and worktree membership. If git is available for the project, record git status --porcelain --untracked-files=all…
  8. Present an exact cleanup proposal containing only inventoried legacy paths. Ask for a separate explicit cleanup approval. For a dirty…
  9. Archive or delete only the approved paths, record each result, and leave the backup intact. Do not use broad globs, hidden shell cleanup…

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:

    • git

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

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    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 Migrate loads about 706 tokens when it runs, and up to ~1.8k if it reads all its reference files. Until then it costs about 32 tokens; SKILL.md has 346 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~32
When it runs · the whole SKILL.md, loaded when a task matches
~706
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.8k

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). 346 words, ~706 tokens.

Download SKILL.mdSave it as .claude/skills/grace-migrate/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
grace-migrate
description
Agent-applied GRACE 3 to GRACE 4 migration workflow. CLI validates the result but does not convert or delete files.
<skill>
<migration_safety>
Migration is copy-and-validate, not destructive conversion. Before writing `.grace`, inventory every legacy source, record a restorable backup path outside the proposed cleanup set, present the migration report, and wait for explicit write approval. Never create retroactive `C-*` bundles.
</migration_safety>
<workflow>
1. Detect legacy docs and current `.grace` state. If `.grace` already exists, stop and ask whether migration should merge, replace, or abort.
2. Inventory legacy source paths and create or verify a restorable backup. Record source coverage and backup evidence in the report.
3. Map legacy requirements, technology, graph, verification, and operational content into the GRACE 4 layout. List ambiguities and unsupported structures rather than guessing.
4. Produce `references/migration-report-template.xml`, review `references/migration-checklist.md`, and ask for explicit approval before writing `.grace`.
5. Write `.grace`, then run `grace lint --path <project-root> --assertions current` and `grace status --path <project-root> --json`. Require status `projectKind` `grace4` with no integrity errors, and record commands, exit states, and findings.
6. If validation is not successful or generated coverage is incomplete, retain all legacy sources and stop.
7. Detect git availability and worktree membership. If git is available for the project, record `git status --porcelain --untracked-files=all` before cleanup.
8. Present an exact cleanup proposal containing only inventoried legacy paths. Ask for a separate explicit cleanup approval. For a dirty worktree or non-git project, require another explicit acknowledgement naming that risk.
9. Archive or delete only the approved paths, record each result, and leave the backup intact. Do not use broad globs, hidden shell cleanup, or unreviewed recursive deletion.
</workflow>

<cleanup_preconditions> Cleanup requires all of: complete inventory, restorable backup, explicit write approval, successful current lint, fresh status proving GRACE 4 with no integrity errors, verified generated coverage, git availability/worktree inspection, recorded porcelain output when applicable, exact proposed paths, separate explicit cleanup approval, and separate dirty or non-git risk acknowledgement when applicable. A missing gate means no cleanup. </cleanup_preconditions>

<cleanup_failure_rule> If validation, git inspection, move, archive, or delete fails, stop immediately and state: "Legacy GRACE 3 artifacts remain untouched unless the failure output explicitly lists a completed move." Never retry destructive cleanup automatically. </cleanup_failure_rule> </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

SKILL.md and 3 other files (references) in skills/grace/grace-migrate of osovv/grace-marketplace.

  • SKILL.md
  • agents/openai.yaml
  • references/migration-checklist.md
  • references/migration-report-template.xml

Open the folder on GitHubat commit 70f5ec4

Compare with similar skills

Grace Migrate 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.

Grace Migrate compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Grace Migrate this skillosovv/grace-marketplace252—~706Automated safety check: PassMIT
Finishing a Development Branchobra/superpowers296k5 repos~1.9kAutomated safety check: PassMIT
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT
Codebase Knowledge Graph Q&AEgonex-AI/Understand-Anything86k1 repos~1.2kAutomated safety check: PassMIT
Code Design Rationale Investigatorcursor/plugins10k9 repos~2.6kAutomated safety check: PassNone
Understand Diff AnalysisEgonex-AI/Understand-Anything86k1 repos~1.4kAutomated safety check: PassMIT

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All 10 skills in this repo
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Works with

Categories

Questions about Grace Migrate

What does Grace Migrate do?

Agent-applied GRACE 3 to GRACE 4 migration workflow. An agent skill from osovv/grace-marketplace. Grace Migrate is an agent skill from osovv/grace-marketplace. Agent-applied GRACE 3 to GRACE 4 migration workflow.

When should I use Grace Migrate?

Grace Migrate fits situations like: development work in your project.

How do I install Grace Migrate in Claude Code?

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

How do I install Grace Migrate in Codex?

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

Can I use Grace Migrate 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-migrate -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-migrate, .gemini/skills/grace-migrate, .github/skills/grace-migrate and .opencode/skills/grace-migrate in your project.

What does Grace Migrate need to run?

Going by SKILL.md and its folder, Grace Migrate needs the command-line tools its instructions call (git).

Does Grace Migrate access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Grace Migrate 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 Migrate use?

Grace Migrate 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 Migrate use?

About 706 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.1k tokens, read only when the agent opens those files.

What are the alternatives to Grace Migrate?

Skills that share tags, products or a category with Grace Migrate: Finishing a Development Branch (obra/superpowers, 296k stars), Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), Codebase Knowledge Graph Q&A (Egonex-AI/Understand-Anything, 86k stars) and Code Design Rationale Investigator (cursor/plugins, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Grace Migrate?

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.