New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Cordis Composition Reference

by singula-ai in singula-ai/alego

A skill your agent uses when writing or reading a Cordis bundle patch or agent preset for this harness and you need the Loader YAML dialect (insert, override by id, group, disabled, isolate, !!js)…

MITAuto-check passed

Install Cordis Composition Reference

skills CLI
$ npx skills add singula-ai/alego --skill cordis-composition-reference -a claude-code

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

GitHub CLI
$ gh skill install singula-ai/alego cordis-composition-reference --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/singula-ai/alego.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/preset/agent-preset/skills/cordis-composition-reference .claude/skills/cordis-composition-reference && 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
cordis-composition-reference
GitHub stars
109
Used in
1 other repo
Token cost
~702 tokens
SKILL.md length
347 words
Files
2 (incl. references)
Skills in repo
20
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when writing or reading a Cordis bundle patch or agent preset for this harness and you need the Loader YAML dialect (insert, override by id, group, disabled, isolate, !!js)…

  • Reading a Cordis bundle patch
  • SKILL.md covers Loader patch dialect and Installable plugin packages
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Agent preset for this harness and you need the Loader YAML dialect (insert

What it does

Cordis Composition Reference is an agent skill from singula-ai/alego. Use when writing or reading a Cordis bundle patch or agent preset for this harness and you need the Loader YAML dialect (insert, override by id, group, disabled, isolate, !!js) or the list of installable Harness plugin packages and what each provides.

Its SKILL.md is about 700 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/packages.md`).

The repository describes itself as: Build AI Agents like playing LEGOs. Everything is a Plugin. The licence is MIT.

When your agent uses it

  • Reading a Cordis bundle patch
  • Agent preset for this harness and you need the Loader YAML dialect (insert
  • The list of installable Harness plugin packages and what each provides

Example prompts

  • “/cordis-composition-reference”

What it can do on your machine

Read from SKILL.md and the folder at commit a79fe9a. 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

Cordis Composition Reference loads about 702 tokens when it runs, and up to ~10k if it reads all its reference files. Until then it costs about 70 tokens; SKILL.md has 347 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~70
When it runs · the whole SKILL.md, loaded when a task matches
~702
With references · SKILL.md plus every file in references/, read only if the agent opens them
~10k

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 singula-ai/alego at commit a79fe9a, republished under its MIT licence (© singula-ai). 347 words, ~702 tokens.

Download SKILL.mdSave it as .claude/skills/cordis-composition-reference/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
cordis-composition-reference
description
Use when writing or reading a Cordis bundle patch or agent preset for this harness and you need the Loader YAML dialect (insert, override by id, group, disabled, isolate, !!js) or the list of installable Harness plugin packages and what each provides.

Cordis composition reference

Reference material for bundle patches and preset plugin lists. Procedures live in cordis-plugin-development and editing-cordis-compositions.

Loader patch dialect

A profile composes an ordered list of patch layers over the bundle entry lists. Each patch is a mapping:

  • insert: [rows] appends rows; with an id naming an existing group: true row, the rows are appended inside that group's config list.
  • A patch with an id and no insert targets the existing row with that id. Supplied fields replace the row's fields; config is replaced wholesale, never deep-merged, so restate every field the row needs. A truthy name asserts the existing plugin name rather than renaming it.
  • Non-insert patches without a nonempty id, and targets that match no row, are warned about and skipped.

A row has id, name (the plugin package specifier; inserted relative paths are anchored beside their patch file), optional config, and optional disabled, inject, intercept, and isolate.

  • group: true with name: cordis:group makes config a nested entry list and allows patches to insert into it by id. cordis:include loads a literal YAML or JSON entry list from config.path.
  • disabled accepts a boolean, null, or a !!js expression evaluated against the Loader context at every mount decision. A disabled row omits required config unless group: true forces activation.
  • !!js scalars are Loader expressions, never !js. Inside config they are evaluated after the row's declared injections activate, against that plugin's context (ctx.<service>), so !!js alegoHomePath('sessions') and !!js "!ctx.get('profileContext')" are valid. Other row metadata stays literal.
  • isolate maps service names to true or a realm label; a preset plugin that provides a service isolates the provider and all consumers together. Scope controls contributions and event visibility; isolate controls service instances.

plugin_manager list_plugins reports each row's enabled flag and fiberPhase; set_plugin and set_bundle answer overridden when a higher-priority layer wins.

Installable plugin packages

references/packages.md lists every workspace package that exports a Cordis plugin, grouped by package group, with whether its row takes config. Search it with grep -n <keyword> rather than reading it whole. Plugins outside this list come from installed bundles; plugin_manager list_bundles names them.

© singula-ai, MIT. 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 1 other file (references) in packages/preset/agent-preset/skills/cordis-composition-reference of singula-ai/alego.

  • SKILL.md
  • references/packages.md

Open the folder on GitHubat commit a79fe9a

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in singula-ai/alego, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Cordis Composition Reference 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.

Cordis Composition Reference compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cordis Composition Reference this skillsingula-ai/alego1091 repos~702Automated safety check: PassMIT
Read Sessionasgeirtj/system_prompts_leaks69k—~2.4kAutomated safety check: PassCC0-1.0
Team Composition Patternswshobson/agents40k—~2kAutomated safety check: PassMIT
Triage Support Bundlenetdata/netdata81k—~2.7kAutomated safety check: PassGPL-3.0
Authoring VPhone Patch SetsLakr233/vphone-cli15k—~4.6kAutomated safety check: PassMIT
Composition Patternssickn33/agentic-awesome-skills47k1 repos~742Automated safety check: PassMIT

Similar skills

  • Read Session

    asgeirtj/system_prompts_leaks

    Locate and read Muse Code's OWN session logs — the current session or a prior one.

    69k GitHub stars~2.4k tokensUpdated today
    Auto-check passed

  • Team Composition Patterns

    wshobson/agents

    Design optimal agent team compositions with sizing heuristics, preset configurations, and agent type selection.

    40k GitHub stars~2k tokensUpdated 3 days ago
    DevelopmentAuto-check passed

  • Triage Support Bundle

    netdata/netdata

    Investigate a Netdata support bundle offline - the archive netdata-support-bundle produces - to explain one host's alerts, missing data, collector failures, crashes, high CPU or memory, streaming…

    81k GitHub stars~2.7k tokensUpdated today
    DevOps & CloudAuto-check passed

  • Authoring VPhone Patch Sets

    Lakr233/vphone-cli

    Explains how to declare a firmware patch in a vphone patch set, add a new set, or write a preset, including naming, gating and the checks that catch undeclared patches.

    15k GitHub stars~4.6k tokensUpdated today
    DevelopmentAuto-check passed

  • Composition Patterns

    sickn33/agentic-awesome-skills

    A skill your agent uses when working with composition-patterns tasks or workflows

    47k GitHub starsUsed in 1 repo~742 tokens
    DevelopmentAuto-check passed

  • Read All Adrs

    sickn33/agentic-awesome-skills

    Read every ADR in a project before summarizing architectural context or decisions.

    47k GitHub starsUsed in 1 repo~323 tokens
    DevelopmentAuto-check passed

More from singula-ai/alego

All 20 skills in this repo

  • Record Browser Gif

    singula-ai/alego

    Record browser or Web UI interaction demos as optimized GIFs using the available browser-control workflow, optional Playwright Videos for higher capture frame rates, and deterministic encoding, then…

    109 GitHub starsUsed in 1 repo~4.1k tokens
    Auto-check: notes

  • Alego Archive Agent Notes

    singula-ai/alego

    A skill your agent uses when adding, auditing, pruning, archiving, restoring, or reviewing Agent Notes in alego; checks every new note for superseded active records, deletes small UI and purely…

    109 GitHub starsUsed in 1 repo~1.7k tokens
    Auto-check passed

  • Alego Merging Stacked PRs

    singula-ai/alego

    A skill your agent uses when landing a stack of dependent GitHub PRs (A ← B ← C, where each bases on the one below) onto master, merging a PR whose base is another open PR's branch, or whenever a…

    109 GitHub starsUsed in 1 repo~2k tokens
    Auto-check passed

  • Editing Cordis Compositions

    singula-ai/alego

    A skill your agent uses when creating, changing, or validating an agent preset or other Cordis composition for this harness, including deciding host versus preset placement and checking that an…

    109 GitHub starsUsed in 1 repo~1.4k tokens
    Auto-check passed

  • Office DOCX

    singula-ai/alego

    Create, read, edit, and check Word documents (.docx), including reports, letters, and formatted tables.

    109 GitHub starsUsed in 1 repo~1.5k tokens
    Auto-check passed

  • Office PPTX

    singula-ai/alego

    Create, read, edit, and check PowerPoint presentations (.pptx), including slide text, tables, images, and charts.

    109 GitHub starsUsed in 1 repo~1.7k tokens
    Auto-check passed

Questions about Cordis Composition Reference

What does Cordis Composition Reference do?

A skill your agent uses when writing or reading a Cordis bundle patch or agent preset for this harness and you need the Loader YAML dialect (insert, override by id, group, disabled, isolate, !!js)…. Cordis Composition Reference is an agent skill from singula-ai/alego.js) or the list of installable Harness plugin packages and what each provides.

When should I use Cordis Composition Reference?

Cordis Composition Reference fits situations like: reading a Cordis bundle patch; agent preset for this harness and you need the Loader YAML dialect (insert; the list of installable Harness plugin packages and what each provides.

How do I install Cordis Composition Reference in Claude Code?

Run `npx skills add singula-ai/alego --skill cordis-composition-reference -a claude-code`. Or copy the skill folder (packages/preset/agent-preset/skills/cordis-composition-reference in singula-ai/alego) into .claude/skills/cordis-composition-reference in your project. Claude Code loads it when a task matches its description.

How do I install Cordis Composition Reference in Codex?

Run `npx skills add singula-ai/alego --skill cordis-composition-reference -a codex`. Or copy the skill folder (packages/preset/agent-preset/skills/cordis-composition-reference in singula-ai/alego) into .agents/skills/cordis-composition-reference in your project. Codex loads it when a task matches its description.

Can I use Cordis Composition Reference 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 singula-ai/alego --skill cordis-composition-reference -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cordis-composition-reference, .gemini/skills/cordis-composition-reference, .github/skills/cordis-composition-reference and .opencode/skills/cordis-composition-reference in your project.

What does Cordis Composition Reference need to run?

SKILL.md names no scripts, command-line tools or credentials: Cordis Composition Reference is instructions for the agent only.

Does Cordis Composition Reference 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 Cordis Composition Reference 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 Cordis Composition Reference use?

Cordis Composition Reference 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 Cordis Composition Reference use?

About 702 tokens (SKILL.md is roughly 2.8k 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 9.5k tokens, read only when the agent opens those files.

What are the alternatives to Cordis Composition Reference?

Skills that share tags, products or a category with Cordis Composition Reference: Read Session (asgeirtj/system_prompts_leaks, 69k stars), Team Composition Patterns (wshobson/agents, 40k stars), Triage Support Bundle (netdata/netdata, 81k stars) and Authoring VPhone Patch Sets (Lakr233/vphone-cli, 15k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cordis Composition Reference?

singula-ai (a GitHub organization) maintains it in singula-ai/alego, which has 109 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on September 28, 2026.

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