Design Change Propagation
Donchitos/Claude-Code-Game-Studios
Finds architecture decision records made stale by a changed game design document, then reports the impact and guides you through resolving each one.
Propagate staleness from a changed note through the Brain Dependency Graph - shows which downstream notes need review
MITAuto-check: notes
Install Propagate Change
$ npx skills add Abilityai/cornelius --skill propagate-change -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Abilityai/cornelius propagate-change --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/Abilityai/cornelius.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/propagate-change .claude/skills/propagate-change && 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 "propagate-change" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/propagate-change into .claude/skills/propagate-change/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "propagate-change", 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/Abilityai/cornelius/tree/main/.claude/skills/propagate-changeType 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 Abilityai/cornelius --skill propagate-change -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Abilityai/cornelius propagate-change --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/propagate-change .agents/skills/propagate-change && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "propagate-change" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/propagate-change into .agents/skills/propagate-change/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "propagate-change", 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 Abilityai/cornelius --skill propagate-change -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Abilityai/cornelius propagate-change --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/propagate-change .cursor/skills/propagate-change && 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 "propagate-change" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/propagate-change into .cursor/skills/propagate-change/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "propagate-change", 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/Abilityai/cornelius.git --path .claude/skills/propagate-change--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 Abilityai/cornelius --skill propagate-change -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Abilityai/cornelius propagate-change --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/propagate-change .gemini/skills/propagate-change && 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 "propagate-change" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/propagate-change into .gemini/skills/propagate-change/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "propagate-change", 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 Abilityai/cornelius propagate-changeInstalls 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 Abilityai/cornelius --skill propagate-change -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/propagate-change .github/skills/propagate-change && 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 "propagate-change" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/propagate-change into .github/skills/propagate-change/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "propagate-change", 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 Abilityai/cornelius --skill propagate-change -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Abilityai/cornelius propagate-change --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Abilityai/cornelius.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/propagate-change .opencode/skills/propagate-change && 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 "propagate-change" agent skill from https://github.com/Abilityai/cornelius/tree/main/.claude/skills/propagate-change into .opencode/skills/propagate-change/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "propagate-change", 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
propagate-change- GitHub stars
- 109
- Token cost
- ~455 tokens
- SKILL.md length
- 156 words
- Files
- 1
- Skills in repo
- 51
- Repo updated
- First seen
- Licence
- MIT
At a glance
Propagate staleness from a changed note through the Brain Dependency Graph - shows which downstream notes need review
- Works in 3 steps: Run propagation → Present affected notes → Offer to inspect specific notes
- SKILL.md covers State Dependencies, Process and When to Use
- Calls python
What it does
Propagate Change is an agent skill from Abilityai/cornelius. Propagate staleness from a changed note through the Brain Dependency Graph - shows which downstream notes need review
Its SKILL.md is about 460 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: AI-powered second brain template for Claude Code + Obsidian. The licence is MIT.
Example prompts
- “/propagate-change”
Requirements
- Python 3
- Pre-approved tools (allowed-tools): Bash, Read
Workflow steps
3 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit fd5e9a4. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
BashRead
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
python
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
Propagate Change loads about 455 tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 156 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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Bash, Read
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 Abilityai/cornelius at commit fd5e9a4, republished under its MIT licence (© Abilityai). 156 words, ~455 tokens.
Download SKILL.mdSave it as
.claude/skills/propagate-change/SKILL.md (or your agent's skills folder).- name
- propagate-change
- description
- Propagate staleness from a changed note through the Brain Dependency Graph - shows which downstream notes need review
- allowed-tools
- Bash, Read
- argument-hint
- <note name>
- user-invocable
- true
- automation
- gated
Propagate Framework/Note Change
When a note is substantially edited, this skill computes which downstream notes may be stale and need review. Uses the Brain Dependency Graph's staleness propagation engine with edge-type decay, distance decay, and hub dampening.
State Dependencies
| Source | Location | Read | Write | Description |
|---|---|---|---|---|
| Enrichments | resources/brain-graph/data/graph_enrichments.json | ✓ | ✓ | Updated staleness scores |
| LBS Graph | resources/local-brain-search/data/brain_graph.pkl | ✓ | NetworkX graph |
Process
Step 1: Run propagation
cd $PROJECT_ROOT/resources/brain-graph
../local-brain-search/venv/bin/python cli.py propagate "<NOTE_NAME>"Optional: specify change magnitude (0.0-1.0) for partial changes:
../local-brain-search/venv/bin/python cli.py propagate "<NOTE_NAME>" --magnitude 0.5Step 2: Present affected notes
Show the user which notes are flagged for review, sorted by staleness score.
For each affected note, explain:
- Why it's flagged (which upstream change, through what edge type)
- Suggested action: review, update, or mark as OK
Step 3: Offer to inspect specific notes
If the user wants details on any affected note:
../local-brain-search/venv/bin/python cli.py inspect "<NOTE_NAME>"When to Use
- After substantially editing a framework or key insight note
- When the user says they've updated their thinking on a topic
- After ingesting new source material that contradicts existing notes
© Abilityai, 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 .claude/skills/propagate-change of Abilityai/cornelius.
Open the folder on GitHubat commit fd5e9a4
Compare with similar skills
Propagate Change 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 |
|---|---|---|---|---|---|---|
| Propagate Change this skillAbilityai/cornelius | 109 | — | ~455 | Automated safety check: Notes | MIT | |
| Design Change PropagationDonchitos/Claude-Code-Game-Studios | 26k | — | ~3.6k | Automated safety check: Notes | MIT | |
| Dependency Updatecodewhale-hq/Codewhale | 41k | — | ~142 | Automated safety check: Pass | MIT | |
| Dependency Scanningsickn33/agentic-awesome-skills | 47k | 1 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Meeting Notesoutline/outline | 41k | — | ~551 | Automated safety check: Pass | Custom licence | |
| Dependency Checkruvnet/ruflo | 74k | — | ~258 | Automated safety check: Pass | MIT |
Similar skills
Dependency Update
codewhale-hq/Codewhale
Read release notes/changelogs, update a defined dependency scope, handle breaking changes, and verify.
Dependency Scanning
sickn33/agentic-awesome-skills
Scan package dependencies for known vulnerabilities using Snyk, Dependabot, and OWASP Dependency-Check.
Meeting Notes
outline/outline
Create meeting notes in Outline from a template; use when the user wants an agenda, notes, or a follow-up document for a meeting.
Dependency Check
ruvnet/ruflo
Scan project dependencies for known vulnerabilities and CVEs.
Release Notes One Pager
nexu-io/open-design
Release notes one-page HTML with highlights, Added, Fixed, Breaking changes, Known issues, and Upgrade note.
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Questions about Propagate Change
What does Propagate Change do?
Propagate staleness from a changed note through the Brain Dependency Graph - shows which downstream notes need review. Propagate Change is an agent skill from Abilityai/cornelius.
How do I install Propagate Change in Claude Code?
Run `npx skills add Abilityai/cornelius --skill propagate-change -a claude-code`. Or copy the skill folder (.claude/skills/propagate-change in Abilityai/cornelius) into .claude/skills/propagate-change in your project. Claude Code loads it when a task matches its description.
How do I install Propagate Change in Codex?
Run `npx skills add Abilityai/cornelius --skill propagate-change -a codex`. Or copy the skill folder (.claude/skills/propagate-change in Abilityai/cornelius) into .agents/skills/propagate-change in your project. Codex loads it when a task matches its description.
Can I use Propagate Change 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 Abilityai/cornelius --skill propagate-change -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/propagate-change, .gemini/skills/propagate-change, .github/skills/propagate-change and .opencode/skills/propagate-change in your project.
What does Propagate Change need to run?
Going by SKILL.md and its folder, Propagate Change needs the command-line tools its instructions call (python). Our summary lists: Python 3. Its frontmatter pre-approves these tools: Bash, Read.
Does Propagate Change 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 Propagate Change safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Propagate Change use?
Propagate Change 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 Propagate Change use?
About 455 tokens (SKILL.md is roughly 1.8k 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 Propagate Change?
Skills that share tags, products or a category with Propagate Change: Design Change Propagation (Donchitos/Claude-Code-Game-Studios, 26k stars), Dependency Update (codewhale-hq/Codewhale, 41k stars), Dependency Scanning (sickn33/agentic-awesome-skills, 47k stars) and Meeting Notes (outline/outline, 41k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Propagate Change?
Abilityai (a GitHub organization) maintains it in Abilityai/cornelius, which has 109 GitHub stars. The repository holds 51 skills in this directory. The repository was last updated on September 22, 2026.
Source: Abilityai/cornelius on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.