PR Design Doc
OpenHands/OpenHands
For a non-trivial pull request, write a self-contained HTML design doc under the temporary .pr/ directory and link a visibility-appropriate preview in the PR description, so maintainers grasp the…
Generate CoDD design documents for a greenfield project one wave at a time.
$ npx skills add yohey-w/codd-dev --skill codd-generate -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install yohey-w/codd-dev codd-generate --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/yohey-w/codd-dev.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/codd-generate .claude/skills/codd-generate && rm -rf skills-srcUse ~/.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/
Install the "codd-generate" agent skill from https://github.com/yohey-w/codd-dev/tree/main/skills/codd-generate into .claude/skills/codd-generate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codd-generate", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/yohey-w/codd-dev/tree/main/skills/codd-generateType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add yohey-w/codd-dev --skill codd-generate -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install yohey-w/codd-dev codd-generate --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yohey-w/codd-dev.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/codd-generate .agents/skills/codd-generate && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "codd-generate" agent skill from https://github.com/yohey-w/codd-dev/tree/main/skills/codd-generate into .agents/skills/codd-generate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codd-generate", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add yohey-w/codd-dev --skill codd-generate -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install yohey-w/codd-dev codd-generate --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yohey-w/codd-dev.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/codd-generate .cursor/skills/codd-generate && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "codd-generate" agent skill from https://github.com/yohey-w/codd-dev/tree/main/skills/codd-generate into .cursor/skills/codd-generate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codd-generate", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/yohey-w/codd-dev.git --path skills/codd-generate--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add yohey-w/codd-dev --skill codd-generate -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install yohey-w/codd-dev codd-generate --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yohey-w/codd-dev.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/codd-generate .gemini/skills/codd-generate && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "codd-generate" agent skill from https://github.com/yohey-w/codd-dev/tree/main/skills/codd-generate into .gemini/skills/codd-generate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codd-generate", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install yohey-w/codd-dev codd-generateInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add yohey-w/codd-dev --skill codd-generate -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/yohey-w/codd-dev.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/codd-generate .github/skills/codd-generate && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "codd-generate" agent skill from https://github.com/yohey-w/codd-dev/tree/main/skills/codd-generate into .github/skills/codd-generate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codd-generate", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add yohey-w/codd-dev --skill codd-generate -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install yohey-w/codd-dev codd-generate --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/yohey-w/codd-dev.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/codd-generate .opencode/skills/codd-generate && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "codd-generate" agent skill from https://github.com/yohey-w/codd-dev/tree/main/skills/codd-generate into .opencode/skills/codd-generate/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codd-generate", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
codd-generateGenerate CoDD design documents for a greenfield project one wave at a time.
Codd Generate is an agent skill from yohey-w/codd-dev. Generate CoDD design documents for a greenfield project one wave at a time. Use after codd init and prepared requirements when the user needs requirement-driven design docs, frontmatter validation, graph refresh, and human approval gates between waves.
Its SKILL.md is about 1.5k 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 Architecture decision records. The repository describes itself as: CoDD: Coherence-Driven Development — Claude Code plugin for cross-artifact change impact analysis. The licence is MIT.
3 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 41b5f87. It shows what the files ask for, not the result of running them.
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.
Shell commands in SKILL.md call:
pythonFrom the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Codd Generate loads about 1.5k tokens when it runs. Until then it costs about 67 tokens; SKILL.md has 734 words of instructions outside code blocks.
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.
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.
The full file from yohey-w/codd-dev at commit 41b5f87, republished under its MIT licence (© yohey-w). 734 words, ~1,485 tokens.
.claude/skills/codd-generate/SKILL.md (or your agent's skills folder).Generate CoDD design documents one wave at a time, validate their frontmatter, refresh the dependency graph, and stop for human approval before advancing to the next wave.
This is for greenfield projects (requirements → design). For brownfield projects (existing code → design), use /codd-restore instead.
Use this skill after codd init and after requirement documents are ready. Generate only one wave at a time. Never auto-run the next wave without a human decision.
If you have an existing codebase with no requirements, use the brownfield flow instead:
codd extract — reverse-engineer code structurecodd plan --init — generate wave_config from extracted docs/codd-restore — reconstruct design docs from extracted factsCoDD design generation follows dependency order. Documents in the same wave may be generated together, but later waves must wait until the previous wave is validated and reviewed.
Since v0.2.0a4, codd generate automatically generates wave_config from requirement documents if it's missing from codd.yaml. You no longer need to run codd plan --init manually before generating. The flow is:
codd init --requirements <file> — CoDD adds frontmatter automaticallycodd generate --wave 2 — wave_config is auto-generated from requirementsThis means the only human input is the requirements. Everything else — wave_config, frontmatter, dependency declarations — is derived automatically.
Before every generation run, verify these conditions:
codd/codd.yaml exists in the project root.doc_dirs. If imported with codd init --requirements, frontmatter is already added. Otherwise, ensure node_id and type: requirement are present in frontmatter.codd init has been completed successfully.codd validate --path . passes.If any prerequisite fails, stop and resolve it before generating.
Follow this loop for each wave:
Generate the target wave:
codd generate --wave 1 --path .Replace 1 with the current wave number.
Read every generated document and confirm:
Validate frontmatter and dependency references:
codd validate --path .Refresh the dependency graph:
codd scan --path .Pause for HITL confirmation before the next wave:
Wave 1の設計書を確認しました。Wave 2に進みますか?Wave Nの成果物を確認しました。Wave N+1 に進みますか?This skill covers the full generate -> scan -> validate checkpoint set, while the safer operator order is generate -> read -> validate -> scan -> HITL.
Human review is mandatory between waves. Do not proceed automatically.
If the human rejects the wave, revise the current wave first, re-run validation, re-run scan, and request approval again.
Run codd validate --path . after each generation and verify:
node_id and type are presentdepends_on references resolve to existing upstream nodesIf validation fails, fix the generated document or the wave configuration before moving forward.
codd generate --wave 1 --path .
codd validate --path .
codd scan --path .Preconditions:
codd init has been runcodd/codd.yaml existscodd generate --wave 2 --path .
codd validate --path .
codd scan --path .Preconditions:
codd validate --path .Error: codd/ not found. Run 'codd init' first.codd init, create codd/codd.yaml, and retry.codd validate --path . again.codd scan --path . after validation completes.codd command, not python -m codd.cli.© yohey-w, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in skills/codd-generate of yohey-w/codd-dev.
Open the folder on GitHubat commit 41b5f87
Codd Generate 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Codd Generate this skillyohey-w/codd-dev | 115 | — | ~1.5k | Automated safety check: Pass | MIT | |
| PR Design DocOpenHands/OpenHands | 90k | — | ~2.4k | Automated safety check: Pass | MIT | |
| Cto AdvisorIbrahim-3d/orchestrator-supaconductor | 381 | 4 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Architecture DecisionDonchitos/Claude-Code-Game-Studios | 26k | — | ~1.7k | Automated safety check: Pass | MIT | |
| Improve Codebase Architectureywwynm/EverythingDone | 144 | 15 repos | ~1.3k | Automated safety check: Pass | GPL-3.0 | |
| Domain Modelingbrim-borium/spotify_sdk | 166 | 5 repos | ~806 | Automated safety check: Pass | Apache-2.0 |
OpenHands/OpenHands
For a non-trivial pull request, write a self-contained HTML design doc under the temporary .pr/ directory and link a visibility-appropriate preview in the PR description, so maintainers grasp the…
Ibrahim-3d/orchestrator-supaconductor
Technical leadership guidance for engineering teams, architecture decisions, and technology strategy.
Donchitos/Claude-Code-Game-Studios
Create an ADR documenting a technical decision: context, alternatives considered, consequences.
ywwynm/EverythingDone
Find deepening opportunities in a codebase, informed by the domain language in CONTEXT.md and the decisions in docs/adr/.
brim-borium/spotify_sdk
Build and sharpen a project's domain model. An agent skill from brim-borium/spotify_sdk.
SpillwaveSolutions/design-doc-mermaid
Create Mermaid diagrams (flowchart, sequence, class, ER, state, C4, architecture) from text or source code.
yohey-w/codd-dev
Run the CoDD greenfield autopilot: a requirements document in, a working system out, unattended.
yohey-w/codd-dev
Initialize CoDD in a project and establish the first scan and validation baseline.
yohey-w/codd-dev
Reverse-propagate source code changes back to affected CoDD design documents.
yohey-w/codd-dev
Reconstruct CoDD design documents from extracted code facts for a brownfield project.
yohey-w/codd-dev
Analyze the downstream impact of changed requirements, design docs, code, or tests in a CoDD project.
yohey-w/codd-dev
Refresh a CoDD project's dependency graph from document frontmatter and source code.
Categories
Generate CoDD design documents for a greenfield project one wave at a time. Codd Generate is an agent skill from yohey-w/codd-dev. Generate CoDD design documents for a greenfield project one wave at a time.
Codd Generate fits situations like: needs requirement-driven design docs; frontmatter validation; human approval gates between waves.
Run `npx skills add yohey-w/codd-dev --skill codd-generate -a claude-code`. Or copy the skill folder (skills/codd-generate in yohey-w/codd-dev) into .claude/skills/codd-generate in your project. Claude Code loads it when a task matches its description.
Run `npx skills add yohey-w/codd-dev --skill codd-generate -a codex`. Or copy the skill folder (skills/codd-generate in yohey-w/codd-dev) into .agents/skills/codd-generate in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add yohey-w/codd-dev --skill codd-generate -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/codd-generate, .gemini/skills/codd-generate, .github/skills/codd-generate and .opencode/skills/codd-generate in your project.
Going by SKILL.md and its folder, Codd Generate needs the command-line tools its instructions call (python). Our summary lists: Python 3.
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.
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.
Codd Generate is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.5k tokens (SKILL.md is roughly 5.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Codd Generate: PR Design Doc (OpenHands/OpenHands, 90k stars), Cto Advisor (Ibrahim-3d/orchestrator-supaconductor, 381 stars), Architecture Decision (Donchitos/Claude-Code-Game-Studios, 26k stars) and Improve Codebase Architecture (ywwynm/EverythingDone, 144 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
yohey-w (a GitHub user) maintains it in yohey-w/codd-dev, which has 115 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on September 14, 2026.
Source: yohey-w/codd-dev on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.