Evaluation
guanyang/open-agent-hub
This skill should be used when building agent evaluation systems: deterministic checks, regression suites, multi-dimensional rubrics, quality gates, production monitoring, baseline comparison, and…
Make a correct update to Parker's prompts, system docs, rubrics, knowledge docs, training corpus, or brand outputs — and propagate the change everywhere it needs to land.
Install Update Parker Skill
$ npx skills add real-simple-labs/parker-brain --skill update-parker-skill -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install real-simple-labs/parker-brain update-parker-skill --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/real-simple-labs/parker-brain.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/update-parker-skill .claude/skills/update-parker-skill && 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 "update-parker-skill" agent skill from https://github.com/real-simple-labs/parker-brain/tree/main/.claude/skills/update-parker-skill into .claude/skills/update-parker-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "update-parker-skill", 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/real-simple-labs/parker-brain/tree/main/.claude/skills/update-parker-skillType 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 real-simple-labs/parker-brain --skill update-parker-skill -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install real-simple-labs/parker-brain update-parker-skill --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/real-simple-labs/parker-brain.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/update-parker-skill .agents/skills/update-parker-skill && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "update-parker-skill" agent skill from https://github.com/real-simple-labs/parker-brain/tree/main/.claude/skills/update-parker-skill into .agents/skills/update-parker-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "update-parker-skill", 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 real-simple-labs/parker-brain --skill update-parker-skill -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install real-simple-labs/parker-brain update-parker-skill --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/real-simple-labs/parker-brain.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/update-parker-skill .cursor/skills/update-parker-skill && 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 "update-parker-skill" agent skill from https://github.com/real-simple-labs/parker-brain/tree/main/.claude/skills/update-parker-skill into .cursor/skills/update-parker-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "update-parker-skill", 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/real-simple-labs/parker-brain.git --path .claude/skills/update-parker-skill--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 real-simple-labs/parker-brain --skill update-parker-skill -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install real-simple-labs/parker-brain update-parker-skill --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/real-simple-labs/parker-brain.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/update-parker-skill .gemini/skills/update-parker-skill && 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 "update-parker-skill" agent skill from https://github.com/real-simple-labs/parker-brain/tree/main/.claude/skills/update-parker-skill into .gemini/skills/update-parker-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "update-parker-skill", 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 real-simple-labs/parker-brain update-parker-skillInstalls 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 real-simple-labs/parker-brain --skill update-parker-skill -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/real-simple-labs/parker-brain.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/update-parker-skill .github/skills/update-parker-skill && 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 "update-parker-skill" agent skill from https://github.com/real-simple-labs/parker-brain/tree/main/.claude/skills/update-parker-skill into .github/skills/update-parker-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "update-parker-skill", 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 real-simple-labs/parker-brain --skill update-parker-skill -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install real-simple-labs/parker-brain update-parker-skill --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/real-simple-labs/parker-brain.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/update-parker-skill .opencode/skills/update-parker-skill && 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 "update-parker-skill" agent skill from https://github.com/real-simple-labs/parker-brain/tree/main/.claude/skills/update-parker-skill into .opencode/skills/update-parker-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "update-parker-skill", 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
update-parker-skill- GitHub stars
- 102
- Token cost
- ~4.6k tokens
- SKILL.md length
- 2,597 words
- Files
- 4 (incl. references)
- Skills in repo
- 22
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Make a correct update to Parker's prompts, system docs, rubrics, knowledge docs, training corpus, or brand outputs — and propagate the change everywhere it needs to land.
- Works in 2 steps: Propose (no edits yet) → Execute (only after explicit approval)
- You are changing any part of the Parker context-engineering system
- SKILL.md covers Goal, Global changes require…, Why this skill exists and How this skill runs, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Update Parker Skill is an agent skill from real-simple-labs/parker-brain. Make a correct update to Parker's prompts, system docs, rubrics, knowledge docs, training corpus, or brand outputs — and propagate the change everywhere it needs to land. Use this skill whenever you are changing any part of the Parker context-engineering system, including tightening a rule, adding a principle, propagating a pattern, adding or modifying a prompt, adding a knowledge doc, or evolving a skill. The skill exists because Parker's docs are highly cross-referenced and inheritance-driven, and updates that…
Its SKILL.md is about 4.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `processes/INDEX.md`, `processes/tighten-rule.md` and `references/canonical-locations.md`).
It sits in Education, covering Quizzes and assessments and Context engineering.
When your agent uses it
- You are changing any part of the Parker context-engineering system
- Including tightening a rule
- Adding a principle
- Propagating a pattern
Example prompts
- “/update-parker-skill”
Workflow steps
2 steps, taken from the step headings in SKILL.md.
- Propose (no edits yet)
- Execute (only after explicit approval)
What it can do on your machine
Read from SKILL.md and the folder at commit 2a6f6c6. 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
Update Parker Skill loads about 4.6k tokens when it runs, and up to ~6.5k if it reads all its reference files. Until then it costs about 148 tokens; SKILL.md has 2,597 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,597 words (~4,638 tokens).
“Make a correct update to Parker's context-engineering system — prompts, system docs, rubrics, knowledge docs, training corpus, skills, or brand outputs — without introducing drift, breaking cross-references, or missing downstream impact.”
- name
- update-parker-skill
- triggers
- update the open-loops system, tighten this rubric, propagate this change across prompts, add a new VoC category, add this principle to the rubric, update the…
Files
SKILL.md and 3 other files (references) in .claude/skills/update-parker-skill of real-simple-labs/parker-brain.
- SKILL.md
- processes/INDEX.md
- processes/tighten-rule.md
- references/canonical-locations.md
Open the folder on GitHubat commit 2a6f6c6
Compare with similar skills
Update Parker Skill 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 |
|---|---|---|---|---|---|---|
| Update Parker Skill this skillreal-simple-labs/parker-brain | 102 | — | ~4.6k | Automated safety check: Pass | Custom licence | |
| Evaluationguanyang/open-agent-hub | 977 | 2 repos | ~4.2k | Automated safety check: Pass | MIT | |
| Claude Code Self-Assessment Advisorlhfer/claude-howto-zh-cn | 2.3k | — | ~1.7k | Automated safety check: Pass | MIT | |
| Skill JudgeshareAI-lab/lab-skills | 315 | — | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| TendrillableIvy-Interactive/Ivy-Tendril | 202 | — | ~2.3k | Automated safety check: Pass | Custom licence | |
| Agent Evaluationseb1n/awesome-ai-agent-skills | 206 | — | ~1.4k | Automated safety check: Pass | MIT |
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Categories
Questions about Update Parker Skill
What does Update Parker Skill do?
Make a correct update to Parker's prompts, system docs, rubrics, knowledge docs, training corpus, or brand outputs — and propagate the change everywhere it needs to land. Update Parker Skill is an agent skill from real-simple-labs/parker-brain. Make a correct update to Parker's prompts, system docs, rubrics, knowledge docs, training corpus, or brand outputs — and propagate the change everywhere it needs to land.
When should I use Update Parker Skill?
Update Parker Skill fits situations like: you are changing any part of the Parker context-engineering system; including tightening a rule; adding a principle; propagating a pattern.
How do I install Update Parker Skill in Claude Code?
Run `npx skills add real-simple-labs/parker-brain --skill update-parker-skill -a claude-code`. Or copy the skill folder (.claude/skills/update-parker-skill in real-simple-labs/parker-brain) into .claude/skills/update-parker-skill in your project. Claude Code loads it when a task matches its description.
How do I install Update Parker Skill in Codex?
Run `npx skills add real-simple-labs/parker-brain --skill update-parker-skill -a codex`. Or copy the skill folder (.claude/skills/update-parker-skill in real-simple-labs/parker-brain) into .agents/skills/update-parker-skill in your project. Codex loads it when a task matches its description.
Can I use Update Parker Skill 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 real-simple-labs/parker-brain --skill update-parker-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/update-parker-skill, .gemini/skills/update-parker-skill, .github/skills/update-parker-skill and .opencode/skills/update-parker-skill in your project.
What does Update Parker Skill need to run?
SKILL.md names no scripts, command-line tools or credentials: Update Parker Skill is instructions for the agent only.
Does Update Parker Skill 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 Update Parker Skill 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 Update Parker Skill use?
Update Parker Skill has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Update Parker Skill use?
About 4.6k tokens (SKILL.md is roughly 19k 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 1.9k tokens, read only when the agent opens those files.
What are the alternatives to Update Parker Skill?
Skills that share tags, products or a category with Update Parker Skill: Evaluation (guanyang/open-agent-hub, 977 stars), Claude Code Self-Assessment Advisor (lhfer/claude-howto-zh-cn, 2.3k stars), Skill Judge (shareAI-lab/lab-skills, 315 stars) and Tendrillable (Ivy-Interactive/Ivy-Tendril, 202 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Update Parker Skill?
real-simple-labs (a GitHub organization) maintains it in real-simple-labs/parker-brain, which has 102 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on October 9, 2026.
Source: real-simple-labs/parker-brain on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.