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…
Compatibility alias for dev-grill-docs spec-only mode. An agent skill from hashgraph-online/awesome-codex-plugins.
Install Dev Spec
$ npx skills add hashgraph-online/awesome-codex-plugins --skill dev-spec -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins dev-spec --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/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/Jason-chen-coder/dev-skills/skills/dev-spec .claude/skills/dev-spec && 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 "dev-spec" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/Jason-chen-coder/dev-skills/skills/dev-spec into .claude/skills/dev-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dev-spec", 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/hashgraph-online/awesome-codex-plugins/tree/main/plugins/Jason-chen-coder/dev-skills/skills/dev-specType 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 hashgraph-online/awesome-codex-plugins --skill dev-spec -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins dev-spec --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/Jason-chen-coder/dev-skills/skills/dev-spec .agents/skills/dev-spec && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "dev-spec" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/Jason-chen-coder/dev-skills/skills/dev-spec into .agents/skills/dev-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dev-spec", 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 hashgraph-online/awesome-codex-plugins --skill dev-spec -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins dev-spec --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/Jason-chen-coder/dev-skills/skills/dev-spec .cursor/skills/dev-spec && 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 "dev-spec" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/Jason-chen-coder/dev-skills/skills/dev-spec into .cursor/skills/dev-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dev-spec", 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/hashgraph-online/awesome-codex-plugins.git --path plugins/Jason-chen-coder/dev-skills/skills/dev-spec--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 hashgraph-online/awesome-codex-plugins --skill dev-spec -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins dev-spec --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/Jason-chen-coder/dev-skills/skills/dev-spec .gemini/skills/dev-spec && 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 "dev-spec" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/Jason-chen-coder/dev-skills/skills/dev-spec into .gemini/skills/dev-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dev-spec", 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 hashgraph-online/awesome-codex-plugins dev-specInstalls 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 hashgraph-online/awesome-codex-plugins --skill dev-spec -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/Jason-chen-coder/dev-skills/skills/dev-spec .github/skills/dev-spec && 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 "dev-spec" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/Jason-chen-coder/dev-skills/skills/dev-spec into .github/skills/dev-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dev-spec", 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 hashgraph-online/awesome-codex-plugins --skill dev-spec -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hashgraph-online/awesome-codex-plugins dev-spec --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/awesome-codex-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/Jason-chen-coder/dev-skills/skills/dev-spec .opencode/skills/dev-spec && 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 "dev-spec" agent skill from https://github.com/hashgraph-online/awesome-codex-plugins/tree/main/plugins/Jason-chen-coder/dev-skills/skills/dev-spec into .opencode/skills/dev-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dev-spec", 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.
Facts
- Skill name
dev-spec- GitHub stars
- 1.2k
- Token cost
- ~864 tokens
- SKILL.md length
- 392 words
- Files
- 3 (incl. references)
- Skills in repo
- 736
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Compatibility alias for dev-grill-docs spec-only mode. An agent skill from hashgraph-online/awesome-codex-plugins.
- Explicit dev-spec requests
- SKILL.md covers Standalone compatibility…, Boundaries, SDD Contract and Multi-Agent Note
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Old dev-spec workflows
What it does
Dev Spec is an agent skill from hashgraph-online/awesome-codex-plugins. Compatibility alias for dev-grill-docs spec-only mode. Use for explicit dev-spec requests, old dev-spec workflows, or spec-only output without CONTEXT.md / ADR updates. Ordinary requirement alignment belongs to dev-grill-docs. Preserves the feature artifact and acceptance contract, including when installed standalone.
Its SKILL.md is about 860 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `examples.md` and `references/dev-baseline.md`).
It sits in Development, covering Architecture decision records. The repository describes itself as: A curated list of awesome OpenAI Codex / ChatGPT plugins, skills, and resources. The 1 Codex Marketplace. See live plugins at: https://hol.org/plugins/best-codex-plugins. The licence is Apache-2.0.
When your agent uses it
- Explicit dev-spec requests
- Old dev-spec workflows
- Spec-only output without CONTEXT.md / ADR updates
Example prompts
- “/dev-spec”
What it can do on your machine
Read from SKILL.md and the folder at commit 16b4156. 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
Dev Spec loads about 864 tokens when it runs, and up to ~1.8k if it reads all its reference files. Until then it costs about 82 tokens; SKILL.md has 392 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.
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 hashgraph-online/awesome-codex-plugins at commit 16b4156, republished under its Apache-2.0 licence (© hashgraph-online). 392 words, ~864 tokens.
Download SKILL.mdSave it as
.claude/skills/dev-spec/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- dev-spec
- description
- Compatibility alias for dev-grill-docs spec-only mode. Use for explicit dev-spec requests, old dev-spec workflows, or spec-only output without CONTEXT.md / ADR updates. Ordinary requirement alignment belongs to dev-grill-docs. Preserves the feature artifact and acceptance contract, including when installed standalone.
Dev Spec
Treat dev-spec as dev-grill-docs --spec-only, forwarding --quick or --deep. Read references/dev-baseline.md.
When dev-grill-docs is available in the installed skill catalog, load it and apply its spec-only mode. Do not assume a sibling directory exists. When it is unavailable, use the compact compatibility contract below; no other skill is required to produce the artifact.
Standalone compatibility contract
- Read the user's request and relevant existing docs, code, terminology, and tests before asking questions.
- Ask only about material unresolved behavior, scope, or acceptance. Preserve prior decisions; a clear request needs no mandatory interview. Record consequential evidence-backed assumptions and keep high-impact unresolved decisions explicit.
- Produce
.claude/artifacts/designs/<feature>.mdin the user's project unless the user specifies another path or chat-only output. Reuse an identifiable existing slug; otherwise choose a descriptive one without a routine confirmation turn. - Include
Background,In scope,Out of scope,Solution, and observableAcceptance criteriawith stableAC-1identifiers. IncludeAssumptions,Edge cases & risks,Open questions, and core entities where relevant. The solution is a behavior sketch, not an implementation task list. - Record source and update date. Preserve status vocabulary:
DRAFTfor proposed or unaligned intent,ALIGNEDfor materially resolved requirements supported by user direction or an accepted source,STUCKfor concrete blocking questions, andIMPLEMENTEDonly when actual implementation evidence supports it. Changed requirements invalidate implementation status for the affected scope. - A
STUCKcontract identifies the blocking decision, affected scope, and needed evidence or owner. Do not advance dependent implementation or planning by treating file existence as readiness. - Report the artifact and unresolved issues. Respect intake-only or analysis-only scope. If broader implementation is already authorized, continue through the available workflow when requirements are sufficient.
Show full SKILL.md (118 more words)Show less
Boundaries
This alias writes no CONTEXT.md or docs/adr/ unless the user explicitly adds those outputs. It does not implement code or diagnose bugs. Analysis-only and no-file instructions take precedence over the default artifact path. See examples.md for compatibility cases.
SDD Contract
Preserve In scope, Out of scope, Assumptions, Open questions, and stable Acceptance criteria for downstream planning, implementation, verification, and review. Existing calls to dev-spec keep the same artifact path and lifecycle vocabulary as dev-grill-docs --spec-only.
Multi-Agent Note
Main-agent-first. If delegation is available and authorized, explorers may gather bounded facts and independent reviewers may evaluate a substantial contract; one agent owns questions and writes. In the source repository, docs/multi-agent-policy.md provides optional guidance, not a dependency for standalone use.
© hashgraph-online, Apache-2.0. 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 2 other files (references) in plugins/Jason-chen-coder/dev-skills/skills/dev-spec of hashgraph-online/awesome-codex-plugins.
- SKILL.md
- examples.md
- references/dev-baseline.md
Open the folder on GitHubat commit 16b4156
Compare with similar skills
Dev Spec 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 |
|---|---|---|---|---|---|---|
| Dev Spec this skillhashgraph-online/awesome-codex-plugins | 1.2k | — | ~864 | Automated safety check: Pass | Apache-2.0 | |
| PR Design DocOpenHands/OpenHands | 90k | — | ~2.4k | Automated safety check: Pass | MIT | |
| Cto AdvisorIbrahim-3d/orchestrator-supaconductor | 380 | 4 repos | ~2.4k | 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 | |
| Design Doc MermaidSpillwaveSolutions/design-doc-mermaid | 175 | 1 repos | ~5.6k | Automated safety check: Pass | None |
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Ibrahim-3d/orchestrator-supaconductor
Technical leadership guidance for engineering teams, architecture decisions, and technology strategy.
Improve Codebase Architecture
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Find deepening opportunities in a codebase, informed by the domain language in CONTEXT.md and the decisions in docs/adr/.
Domain Modeling
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Build and sharpen a project's domain model. An agent skill from brim-borium/spotify_sdk.
Design Doc Mermaid
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Create Mermaid diagrams (flowchart, sequence, class, ER, state, C4, architecture) from text or source code.
Learning Opportunities
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Related
Categories
Questions about Dev Spec
What does Dev Spec do?
Compatibility alias for dev-grill-docs spec-only mode. An agent skill from hashgraph-online/awesome-codex-plugins. Dev Spec is an agent skill from hashgraph-online/awesome-codex-plugins. Compatibility alias for dev-grill-docs spec-only mode.
When should I use Dev Spec?
Dev Spec fits situations like: explicit dev-spec requests; old dev-spec workflows; spec-only output without CONTEXT.md / ADR updates.
How do I install Dev Spec in Claude Code?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill dev-spec -a claude-code`. Or copy the skill folder (plugins/Jason-chen-coder/dev-skills/skills/dev-spec in hashgraph-online/awesome-codex-plugins) into .claude/skills/dev-spec in your project. Claude Code loads it when a task matches its description.
How do I install Dev Spec in Codex?
Run `npx skills add hashgraph-online/awesome-codex-plugins --skill dev-spec -a codex`. Or copy the skill folder (plugins/Jason-chen-coder/dev-skills/skills/dev-spec in hashgraph-online/awesome-codex-plugins) into .agents/skills/dev-spec in your project. Codex loads it when a task matches its description.
Can I use Dev Spec 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 hashgraph-online/awesome-codex-plugins --skill dev-spec -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/dev-spec, .gemini/skills/dev-spec, .github/skills/dev-spec and .opencode/skills/dev-spec in your project.
What does Dev Spec need to run?
SKILL.md names no scripts, command-line tools or credentials: Dev Spec is instructions for the agent only.
Does Dev Spec 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 Dev Spec 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 Dev Spec use?
Dev Spec is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Dev Spec use?
About 864 tokens (SKILL.md is roughly 3.5k 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 893 tokens, read only when the agent opens those files.
What are the alternatives to Dev Spec?
Skills that share tags, products or a category with Dev Spec: PR Design Doc (OpenHands/OpenHands, 90k stars), Cto Advisor (Ibrahim-3d/orchestrator-supaconductor, 380 stars), Improve Codebase Architecture (ywwynm/EverythingDone, 144 stars) and Domain Modeling (brim-borium/spotify_sdk, 166 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Dev Spec?
hashgraph-online (a GitHub organization) maintains it in hashgraph-online/awesome-codex-plugins, which has 1,232 GitHub stars. The repository holds 736 skills in this directory. The repository was last updated on October 6, 2026.
Source: hashgraph-online/awesome-codex-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.