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Agent skill

Update

by Q00 in Q00/ouroboros

Check for updates and upgrade Ouroboros to the latest version

MITAuto-check passedAgent Workflows

Install Update

skills CLI
$ npx skills add Q00/ouroboros --skill update -a claude-code

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

GitHub CLI
$ gh skill install Q00/ouroboros update --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/Q00/ouroboros.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/update .claude/skills/update && 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
update
GitHub stars
6.2k
Token cost
~1.1k tokens
SKILL.md length
565 words
Files
1
Skills in repo
23
Repo updated
First seen
Licence
MIT

At a glance

Check for updates and upgrade Ouroboros to the latest version

  • Works in 4 steps: Use the native command as the single… → If the check exits unsuccessfully but… → If ouroboros update --help does not… → …
  • Agent Workflows work in your project
  • SKILL.md covers Usage, Instructions, Safety contract and RFC #1392 State Breadcrumb…
  • Calls uv and pipx

What it does

Update is an agent skill from Q00/ouroboros. Check for updates and upgrade Ouroboros to the latest version

Its SKILL.md is about 1.1k 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. The repository describes itself as: Agent OS: the agent gets smarter on its own. We just hold the line: Interview-gated, staged evaluation, budgeted evolution loop. MCP server, 14 runtimes: Claude Code, Codex CLI… The licence is MIT.

When your agent uses it

  • Agent Workflows work in your project

Example prompts

  • “/update”

Workflow steps

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

  1. Use the native command as the single source of truth
  2. If the check exits unsuccessfully but ouroboros update --help works,
  3. If ouroboros update --help does not work, this is a legacy installation
  4. After a successful update, relay the runtime-specific restart guidance from

What it can do on your machine

Read from SKILL.md and the folder at commit 0df5b98. 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:

    • uv
    • pipx

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

  • Network

    No URLs in SKILL.md. Its commands use uv and pipx, 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

Update loads about 1.1k tokens when it runs. Until then it costs about 17 tokens; SKILL.md has 565 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~17
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k

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 Q00/ouroboros at commit 0df5b98, republished under its MIT licence (© Q00). 565 words, ~1,099 tokens.

Download SKILL.mdSave it as .claude/skills/update/SKILL.md (or your agent's skills folder).
name
update
description
Check for updates and upgrade Ouroboros to the latest version

/ouroboros:update

Check for updates and upgrade Ouroboros without changing the installation's manager, environment, or optional-dependency profile.

Usage

ooo update
/ouroboros:update

Trigger keywords: "ooo update", "update ouroboros", "upgrade ouroboros"

Instructions

When the user invokes this skill:

  1. Use the native command as the single source of truth:

    bash
    ouroboros update --check

    • If it reports up to date, report that result and stop.

    • If it reports an update available, ask the user to choose Update now or Skip.

    • If the user chooses Update now, run:

      bash
      ouroboros update --yes

      When the user actively uses both Claude Code and Codex, refresh both host integrations without changing the configured execution backend:

      bash
      ouroboros update --yes --runtime all

    Show the command's result. The native updater binds the package upgrade and post-update setup to one receipt-backed installation identity: manager, environment, recorded profile, and environment-local console script.

  2. If the check exits unsuccessfully but ouroboros update --help works, report the native error and stop. Do not replace it with a manual updater. In particular, do not infer ownership from global uv tool list, pipx list, PATH order, directory names, or the active agent runtime.

  3. If ouroboros update --help does not work, this is a legacy installation that predates the receipt-bound updater. Fail closed:

    • A read-only ouroboros --version check is allowed.
    • Explain that the old skill cannot prove the original manager, environment, and extras/profile, so it will not mutate the installation.
    • Ask the user to rerun the exact original install command (including its ouroboros-ai[...] extras and custom manager root) to reach a version with the native updater.
    • If the user does not know that identity, recommend a fresh isolated install rather than guessing.
    • Do not run package upgrades, plugin refreshes, or setup commands from this legacy path.

  4. After a successful update, relay the runtime-specific restart guidance from the native command. If project instruction content also needs regeneration, suggest ooo setup; do not edit project instruction files as part of the package update.

Show full SKILL.md (246 more words)Show less

Safety contract

  • PyPI is the version source of truth; fully yanked releases are excluded.
  • uv and pipx upgrades replay the running environment's local receipt, preserving base, [tui], [mcp,tui], [claude,tui], [all], and other recorded profiles.
  • The Claude SDK and MCP 2 profiles are never combined or substituted.
  • Missing or ambiguous installation identity is a non-mutating error.
  • Automatic runtime refresh preserves the configured backend and the existing OpenCode plugin/subprocess topology instead of inferring a replacement from PATH.
  • Runtime executable identity follows the supported environment override, then the persisted orchestrator.*_cli_path, then PATH. The chosen exact executable is validated and reused for plugin/setup refresh so a stale PATH binary cannot replace an operator-selected runtime.
  • --runtime all refreshes the Claude and Codex plugin integrations plus installed runtime artifacts without changing the configured execution backend. Active Codex sessions still need a restart because Codex does not currently retain an in-use plugin generation; Claude may use /reload-plugins or restart.
  • ouroboros update supports --check, --yes, --dry-run, --prerelease, and --runtime; see ouroboros update --help.

Your final response MUST end with exactly one breadcrumb footer line:

◆ <current state> → next: <recommended action>

Derive <current state> from live session state via ouroboros_session_status when that MCP projection is available; otherwise derive it from this skill's actual outcome. Never use a linear Step N of M footer because Ouroboros is an evolutionary loop. When the next action is genuinely a choice, list 2-3 honest options in the next: clause. The breadcrumb line must be the last line of the response.

© Q00, MIT. 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/update of Q00/ouroboros.

Open the folder on GitHubat commit 0df5b98

Compare with similar skills

Update 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.

Update compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Update this skillQ00/ouroboros6.2k—~1.1kAutomated safety check: PassMIT
MCP Server Builderanthropics/skills180k62 repos~2.3kAutomated safety check: PassApache-2.0
Hook Development for Claude Code Pluginsanthropics/claude-plugins-official37k11 repos~4.1kAutomated safety check: NotesApache-2.0
Using Superpowersfarm-fe/farm5.6k34 repos~1.4kAutomated safety check: PassMIT
Executing Plans Inlineobra/superpowers296k2 repos~5.1kAutomated safety check: PassMIT
Claude Code Agent Developmentanthropics/claude-plugins-official37k8 repos~2.8kAutomated safety check: PassApache-2.0

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More from Q00/ouroboros

All 23 skills in this repo

  • Ouroboros Maintainer Triage

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  • Ouroboros Three-Stage Evaluate

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  • Ouroboros Evolve Loop

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  • Ouroboros Settings Opener

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Categories

Questions about Update

What does Update do?

Check for updates and upgrade Ouroboros to the latest version. Update is an agent skill from Q00/ouroboros.

When should I use Update?

Update fits situations like: agent Workflows work in your project.

How do I install Update in Claude Code?

Run `npx skills add Q00/ouroboros --skill update -a claude-code`. Or copy the skill folder (skills/update in Q00/ouroboros) into .claude/skills/update in your project. Claude Code loads it when a task matches its description.

How do I install Update in Codex?

Run `npx skills add Q00/ouroboros --skill update -a codex`. Or copy the skill folder (skills/update in Q00/ouroboros) into .agents/skills/update in your project. Codex loads it when a task matches its description.

Can I use Update 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 Q00/ouroboros --skill update -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, .gemini/skills/update, .github/skills/update and .opencode/skills/update in your project.

What does Update need to run?

Going by SKILL.md and its folder, Update needs the command-line tools its instructions call (uv and pipx).

Does Update access the network?

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

Is Update 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 use?

Update 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 Update use?

About 1.1k tokens (SKILL.md is roughly 4.4k 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 Update?

Skills that share tags, products or a category with Update: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 37k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 296k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Update?

Q00 (a GitHub user) maintains it in Q00/ouroboros, which has 6,189 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on October 6, 2026.

Source: Q00/ouroboros on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.