Darwin Skill Optimizer
alchaincyf/darwin-skill
Scores SKILL.md files on a nine-dimension rubric, then improves them in a keep-or-revert loop with independent judge agents, test prompts, git history and human checkpoints.
A skill your agent uses when adding or auditing Agentlas skill lifecycle metadata, skill-registry.json, trial evidence, Curator promotion decisions, or first-class skill promotion gates.
Install Skill Lifecycle Promotion
$ npx skills add agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install agentlas-ai/Agentlas-OS skill-lifecycle-promotion --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/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/skill-lifecycle-promotion .claude/skills/skill-lifecycle-promotion && 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 "skill-lifecycle-promotion" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/skills/skill-lifecycle-promotion into .claude/skills/skill-lifecycle-promotion/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lifecycle-promotion", 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/agentlas-ai/Agentlas-OS/tree/main/skills/skill-lifecycle-promotionType 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 agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install agentlas-ai/Agentlas-OS skill-lifecycle-promotion --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/skill-lifecycle-promotion .agents/skills/skill-lifecycle-promotion && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "skill-lifecycle-promotion" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/skills/skill-lifecycle-promotion into .agents/skills/skill-lifecycle-promotion/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lifecycle-promotion", 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 agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install agentlas-ai/Agentlas-OS skill-lifecycle-promotion --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/skill-lifecycle-promotion .cursor/skills/skill-lifecycle-promotion && 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 "skill-lifecycle-promotion" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/skills/skill-lifecycle-promotion into .cursor/skills/skill-lifecycle-promotion/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lifecycle-promotion", 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/agentlas-ai/Agentlas-OS.git --path skills/skill-lifecycle-promotion--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 agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install agentlas-ai/Agentlas-OS skill-lifecycle-promotion --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/skill-lifecycle-promotion .gemini/skills/skill-lifecycle-promotion && 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 "skill-lifecycle-promotion" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/skills/skill-lifecycle-promotion into .gemini/skills/skill-lifecycle-promotion/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lifecycle-promotion", 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 agentlas-ai/Agentlas-OS skill-lifecycle-promotionInstalls 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 agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/skill-lifecycle-promotion .github/skills/skill-lifecycle-promotion && 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 "skill-lifecycle-promotion" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/skills/skill-lifecycle-promotion into .github/skills/skill-lifecycle-promotion/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lifecycle-promotion", 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 agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install agentlas-ai/Agentlas-OS skill-lifecycle-promotion --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/agentlas-ai/Agentlas-OS.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/skill-lifecycle-promotion .opencode/skills/skill-lifecycle-promotion && 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 "skill-lifecycle-promotion" agent skill from https://github.com/agentlas-ai/Agentlas-OS/tree/main/skills/skill-lifecycle-promotion into .opencode/skills/skill-lifecycle-promotion/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-lifecycle-promotion", 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
skill-lifecycle-promotion- GitHub stars
- 1.6k
- Token cost
- ~334 tokens
- SKILL.md length
- 138 words
- Files
- 1
- Skills in repo
- 53
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
A skill your agent uses when adding or auditing Agentlas skill lifecycle metadata, skill-registry.json, trial evidence, Curator promotion decisions, or first-class skill promotion gates.
- Works in 9 steps: Add .agentlas/skill-registry.json as an… → Add empty .agentlas/skill-trials.jsonl and → Keep every skill at tier: candidate on… → …
- Auditing Agentlas skill lifecycle metadata
- SKILL.md covers Procedure and Output
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Skill Lifecycle Promotion is an agent skill from agentlas-ai/Agentlas-OS. Use when adding or auditing Agentlas skill lifecycle metadata, skill-registry.json, trial evidence, Curator promotion decisions, or first-class skill promotion gates.
Its SKILL.md is about 330 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 Agent Workflows, covering Skill management. The repository describes itself as: Agent OS: keep specialist agents in a hub, spin up a temporary orchestrator per task. Local-first, works with any model. The licence is Apache-2.0.
When your agent uses it
- Auditing Agentlas skill lifecycle metadata
- Skill-registry.json
- Curator promotion decisions
- First-class skill promotion gates
Example prompts
- “/skill-lifecycle-promotion”
Workflow steps
9 steps, taken from the first numbered list in SKILL.md.
- Add .agentlas/skill-registry.json as an export-only candidate registry.
- Add empty .agentlas/skill-trials.jsonl and
- Keep every skill at tier: candidate on export.
- Keep runtimeFirstClassRecallEnabled: false until semantic curation and the
- Add success predicates and situation tags for every skill.
- Separate ## Memory Events from ## Skill Trial Events.
- Treat LLM rubric review as weak evidence only.
- Block promotion when authority separation, sealed holdouts, replayability, or
- Include false-accept, blind-spot, and drift terms in any durable-error budget.
What it can do on your machine
Read from SKILL.md and the folder at commit 6254906. 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
Skill Lifecycle Promotion loads about 334 tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 138 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 agentlas-ai/Agentlas-OS at commit 6254906, republished under its Apache-2.0 licence (© agentlas-ai). 138 words, ~334 tokens.
Download SKILL.mdSave it as
.claude/skills/skill-lifecycle-promotion/SKILL.md (or your agent's skills folder).- name
- skill-lifecycle-promotion
- description
- Use when adding or auditing Agentlas skill lifecycle metadata, skill-registry.json, trial evidence, Curator promotion decisions, or first-class skill promotion gates.
Skill Lifecycle Promotion
Use this skill when a generated or packaged Agentlas repo needs governed skill promotion metadata.
Procedure
- Add
.agentlas/skill-registry.jsonas an export-only candidate registry. - Add empty
.agentlas/skill-trials.jsonland.agentlas/curator-decisions.jsonl. - Keep every skill at
tier: candidateon export. - Keep
runtimeFirstClassRecallEnabled: falseuntil semantic curation and the trusted owner approval service accept the exact staged instruction/skill diff. Curator decisions never authorize executable file changes by themselves. - Add success predicates and situation tags for every skill.
- Separate
## Memory Eventsfrom## Skill Trial Events. - Treat LLM rubric review as weak evidence only.
- Block promotion when authority separation, sealed holdouts, replayability, or rollback evidence is missing.
- Include false-accept, blind-spot, and drift terms in any durable-error budget.
Output
Return:
- registry files added or checked;
- promotion tier status;
- evidence gaps;
- rollback/quarantine status;
- residual risks.
© agentlas-ai, 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
Just SKILL.md in skills/skill-lifecycle-promotion of agentlas-ai/Agentlas-OS.
Open the folder on GitHubat commit 6254906
Compare with similar skills
Skill Lifecycle Promotion 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 |
|---|---|---|---|---|---|---|
| Skill Lifecycle Promotion this skillagentlas-ai/Agentlas-OS | 1.6k | — | ~334 | Automated safety check: Pass | Apache-2.0 | |
| Darwin Skill Optimizeralchaincyf/darwin-skill | 6.2k | 1 repos | ~4.7k | Automated safety check: Pass | MIT | |
| Using Agent Skillsaddyosmani/agent-skills | 103k | 4 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Ponytail Help CardDietrichGebert/ponytail | 159k | — | ~726 | Automated safety check: Pass | MIT | |
| Skill Creatorzhayujie/CowAgent | 47k | — | ~4.7k | Automated safety check: Notes | MIT | |
| Task Observerrebelytics/one-skill-to-rule-them-all | 3.2k | 1 repos | ~12k | Automated safety check: Pass | CC-BY-4.0 |
Similar skills
Using Agent Skills
addyosmani/agent-skills
Meta-skill for choosing which workflow skill fits the task at hand, plus always-on habits: surface assumptions, stop on confusion, push back, keep it simple and stay in scope.
Ponytail Help Card
DietrichGebert/ponytail
Shows a one-shot quick-reference card for the ponytail skills: intensity levels, the six commands, and how to turn it off, set a default mode and update.
Skill Creator
zhayujie/CowAgent
Guides creating, installing and updating agent skills in a workspace: SKILL.md frontmatter, bundled scripts and references, with scripts to scaffold, validate and package.
Task Observer
rebelytics/one-skill-to-rule-them-all
Monitors task execution for skill improvement opportunities.
Skill Stocktake
affaan-m/ECC
Audits your installed Claude skills and commands for quality, with a quick mode for recently changed skills and a full mode that evaluates all of them through subagents.
More from agentlas-ai/Agentlas-OS
All 53 skills in this repoAgentlas Security Scan
agentlas-ai/Agentlas-OS
A skill your agent uses when an agent folder must pass the Agentlas Cloud 2-stage security scan (static rules + BYOK LLM judgment) before private sync or public publish, or when asked to…
Hephaestus Build
agentlas-ai/Agentlas-OS
A skill your agent uses when the user types /prompts:hep-build or /agentlas-build, mentions @Hephaestus for build work, asks to create a single Agentlas agent, create a multi-agent team, or package…
Hephaestus Graph
agentlas-ai/Agentlas-OS
A skill your agent uses when the user types /hep-graph or asks to create, list, inspect, or request a run of an Agentlas automation graph.
Hephaestus Upload
agentlas-ai/Agentlas-OS
A skill your agent uses when the user types $hephaestus-upload, /hep-upload, or /agentlas-upload, or asks to upload, publish, or list an Agentlas agent or team.
Routing Card Authoring
agentlas-ai/Agentlas-OS
A skill your agent uses whenever a build emits or repairs .agentlas/routing-card.json — the shared card contract for the single-agent builder, the team builder, and the packager.
Team Builder Packaging
agentlas-ai/Agentlas-OS
A skill your agent uses when generating or auditing a multi-role agent team package with orchestrator, PM Soul, Memory Curator, Policy Gate, workers, eval, QA, handoffs, and runtime adapters.
Related
Categories
Questions about Skill Lifecycle Promotion
What does Skill Lifecycle Promotion do?
A skill your agent uses when adding or auditing Agentlas skill lifecycle metadata, skill-registry.json, trial evidence, Curator promotion decisions, or first-class skill promotion gates. Skill Lifecycle Promotion is an agent skill from agentlas-ai/Agentlas-OS.json, trial evidence, Curator promotion decisions, or first-class skill promotion gates.
When should I use Skill Lifecycle Promotion?
Skill Lifecycle Promotion fits situations like: auditing Agentlas skill lifecycle metadata; skill-registry.json; curator promotion decisions; first-class skill promotion gates.
How do I install Skill Lifecycle Promotion in Claude Code?
Run `npx skills add agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a claude-code`. Or copy the skill folder (skills/skill-lifecycle-promotion in agentlas-ai/Agentlas-OS) into .claude/skills/skill-lifecycle-promotion in your project. Claude Code loads it when a task matches its description.
How do I install Skill Lifecycle Promotion in Codex?
Run `npx skills add agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a codex`. Or copy the skill folder (skills/skill-lifecycle-promotion in agentlas-ai/Agentlas-OS) into .agents/skills/skill-lifecycle-promotion in your project. Codex loads it when a task matches its description.
Can I use Skill Lifecycle Promotion 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 agentlas-ai/Agentlas-OS --skill skill-lifecycle-promotion -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skill-lifecycle-promotion, .gemini/skills/skill-lifecycle-promotion, .github/skills/skill-lifecycle-promotion and .opencode/skills/skill-lifecycle-promotion in your project.
What does Skill Lifecycle Promotion need to run?
SKILL.md names no scripts, command-line tools or credentials: Skill Lifecycle Promotion is instructions for the agent only.
Does Skill Lifecycle Promotion 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 Skill Lifecycle Promotion 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 Skill Lifecycle Promotion use?
Skill Lifecycle Promotion 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 Skill Lifecycle Promotion use?
About 334 tokens (SKILL.md is roughly 1.3k 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 Skill Lifecycle Promotion?
Skills that share tags, products or a category with Skill Lifecycle Promotion: Darwin Skill Optimizer (alchaincyf/darwin-skill, 6.2k stars), Using Agent Skills (addyosmani/agent-skills, 103k stars), Ponytail Help Card (DietrichGebert/ponytail, 159k stars) and Skill Creator (zhayujie/CowAgent, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Skill Lifecycle Promotion?
agentlas-ai (a GitHub organization) maintains it in agentlas-ai/Agentlas-OS, which has 1,582 GitHub stars. The repository holds 53 skills in this directory. The repository was last updated on October 8, 2026.
Source: agentlas-ai/Agentlas-OS on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.