Orca CLI
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Operate Orca-managed worktrees, folder contexts, terminals, repos, automations, artifacts, skill sharing, worktree comments, and Orca's embedded browser…
Trace error propagation through a multi-agent session by agent depth — where failures originated, the depth at which they appeared, and how they cascaded up to parent agents — using the Agent…
Install Error Propagation
$ npx skills add hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hoangsonww/Claude-Code-Agent-Monitor error-propagation --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/hoangsonww/Claude-Code-Agent-Monitor.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/ccam-workflows/skills/error-propagation .claude/skills/error-propagation && 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 "error-propagation" agent skill from https://github.com/hoangsonww/Claude-Code-Agent-Monitor/tree/master/plugins/ccam-workflows/skills/error-propagation into .claude/skills/error-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-propagation", 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/hoangsonww/Claude-Code-Agent-Monitor/tree/master/plugins/ccam-workflows/skills/error-propagationType 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 hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hoangsonww/Claude-Code-Agent-Monitor error-propagation --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hoangsonww/Claude-Code-Agent-Monitor.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/ccam-workflows/skills/error-propagation .agents/skills/error-propagation && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "error-propagation" agent skill from https://github.com/hoangsonww/Claude-Code-Agent-Monitor/tree/master/plugins/ccam-workflows/skills/error-propagation into .agents/skills/error-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-propagation", 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 hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hoangsonww/Claude-Code-Agent-Monitor error-propagation --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hoangsonww/Claude-Code-Agent-Monitor.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/ccam-workflows/skills/error-propagation .cursor/skills/error-propagation && 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 "error-propagation" agent skill from https://github.com/hoangsonww/Claude-Code-Agent-Monitor/tree/master/plugins/ccam-workflows/skills/error-propagation into .cursor/skills/error-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-propagation", 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/hoangsonww/Claude-Code-Agent-Monitor.git --path plugins/ccam-workflows/skills/error-propagation--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 hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hoangsonww/Claude-Code-Agent-Monitor error-propagation --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hoangsonww/Claude-Code-Agent-Monitor.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/ccam-workflows/skills/error-propagation .gemini/skills/error-propagation && 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 "error-propagation" agent skill from https://github.com/hoangsonww/Claude-Code-Agent-Monitor/tree/master/plugins/ccam-workflows/skills/error-propagation into .gemini/skills/error-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-propagation", 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 hoangsonww/Claude-Code-Agent-Monitor error-propagationInstalls 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 hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hoangsonww/Claude-Code-Agent-Monitor.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/ccam-workflows/skills/error-propagation .github/skills/error-propagation && 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 "error-propagation" agent skill from https://github.com/hoangsonww/Claude-Code-Agent-Monitor/tree/master/plugins/ccam-workflows/skills/error-propagation into .github/skills/error-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-propagation", 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 hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hoangsonww/Claude-Code-Agent-Monitor error-propagation --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hoangsonww/Claude-Code-Agent-Monitor.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/ccam-workflows/skills/error-propagation .opencode/skills/error-propagation && 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 "error-propagation" agent skill from https://github.com/hoangsonww/Claude-Code-Agent-Monitor/tree/master/plugins/ccam-workflows/skills/error-propagation into .opencode/skills/error-propagation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "error-propagation", 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
error-propagation- GitHub stars
- 1.1k
- Token cost
- ~688 tokens
- SKILL.md length
- 309 words
- Files
- 2
- Skills in repo
- 78
- Repo updated
- First seen
- Licence
- MIT
At a glance
Trace error propagation through a multi-agent session by agent depth — where failures originated, the depth at which they appeared, and how they cascaded up to parent agents — using the Agent…
- Works in 5 steps: Failure Summary → Errors by Depth → Cascade Paths → …
- A multi-agent run failed and you need to find the origin and blast radius of the failure
- SKILL.md covers Input, Data Sources, Report Sections and Output
- Calls npm
What it does
Error Propagation is an agent skill from hoangsonww/Claude-Code-Agent-Monitor. Trace error propagation through a multi-agent session by agent depth — where failures originated, the depth at which they appeared, and how they cascaded up to parent agents — using the Agent Monitor workflow intelligence API and the session event stream. Use when a multi-agent run failed and you need to find the origin and blast radius of the failure.
Its SKILL.md is about 690 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).
It sits in Agent Workflows, covering Multi-agent orchestration. The repository describes itself as: 🚀 A real-time monitoring dashboard for Claude Code & Codex, built with SQLite3, Node.js, Express, React, Vite, TailwindCSS, & WebSockets. It tracks sessions, agent activity… The licence is MIT.
When your agent uses it
- A multi-agent run failed and you need to find the origin and blast radius of the failure
- Tasks that involve Multi-agent orchestration
Example prompts
- “/error-propagation”
Workflow steps
5 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 1a10d68. 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:
npm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm, 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
Error Propagation loads about 688 tokens when it runs. Until then it costs about 93 tokens; SKILL.md has 309 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 hoangsonww/Claude-Code-Agent-Monitor at commit 1a10d68, republished under its MIT licence (© hoangsonww). 309 words, ~688 tokens.
Download SKILL.mdSave it as
.claude/skills/error-propagation/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- error-propagation
- description
- Trace error propagation through a multi-agent session by agent depth — where failures originated, the depth at which they appeared, and how they cascaded up to parent agents — using the Agent Monitor workflow intelligence API and the session event stream. Use when a multi-agent run failed and you need to find the origin and blast radius of the failure.
Error Propagation
Trace where a multi-agent session's failures started and how far they spread.
Input
The user provides: $ARGUMENTS
A session ID. If empty, fetch GET /api/sessions?limit=1, but prefer the most recent session whose status is error or abandoned; state which one you picked.
Data Sources
| Endpoint | Returns |
|---|---|
GET /api/workflows/{sessionId} | The errorPropagation dataset: failures grouped by agent depth, with originating depth and cascade paths to parents |
GET /api/events?session_id={sessionId} | The event stream — corroborate with APIError, SubagentStop, and failing PostToolUse events (event_type, tool_name, summary, timestamp) |
Report Sections
1. Failure Summary
From errorPropagation: total errors, the depth where the first error originated, and how many distinct agents were affected.
Origin depth: d · Errors: N · Agents affected: M
2. Errors by Depth
| Depth | Errors originated | Errors inherited from children | Net failing agents |
|---|---|---|---|
| Show whether failures concentrate deep in the tree (leaf subagents) or shallow (orchestrator). |
3. Cascade Paths
For each originating failure, the path it propagated along:
debugger (depth 2, tool failure) → code-review (depth 1, marked error) → root (depth 0, aborted)
Tie each step to a concrete event from /api/events (event_type + tool_name + timestamp) where available.
4. Error Taxonomy
Break errors down by type from the event stream: APIError vs failing tool calls vs SubagentStop with error status. Note the most frequent tool involved in failures.
5. Containment Assessment
Whether failures were contained at the depth where they originated or leaked to parents. Name any parent that aborted solely because a child failed — a candidate for better error handling / isolation.
Output
- Markdown tables for the depth breakdown; a fenced list for cascade paths.
- Timestamps for the first and last error.
- Cite only errors present in
errorPropagationand the event stream; never invent failures or causes. - If the session has no errors, say so plainly and stop.
- If the dashboard is unreachable, tell the user to start it with
npm startfrom the repo root.
© hoangsonww, 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 in plugins/ccam-workflows/skills/error-propagation of hoangsonww/Claude-Code-Agent-Monitor.
- SKILL.md
- agents/openai.yaml
Open the folder on GitHubat commit 1a10d68
Compare with similar skills
Error Propagation 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 |
|---|---|---|---|---|---|---|
| Error Propagation this skillhoangsonww/Claude-Code-Agent-Monitor | 1.1k | — | ~688 | Automated safety check: Pass | MIT | |
| Orca CLIstablyai/orca | 88k | 2 repos | ~593 | Automated safety check: Pass | MIT | |
| Paseo Advisor Second Opiniongetpaseo/paseo | 20k | 1 repos | ~756 | Automated safety check: Pass | Custom licence | |
| O2 Review Loopopenobserve/openobserve | 22k | — | ~3.7k | Automated safety check: Pass | AGPL-3.0 | |
| Paseo Committeegetpaseo/paseo | 20k | 1 repos | ~496 | Automated safety check: Pass | Custom licence | |
| Mission Control Agent APIbuilderz-labs/mission-control | 6.3k | — | ~2.1k | Automated safety check: Pass | MIT |
Similar skills
Paseo Advisor Second Opinion
getpaseo/paseo
Launches one separate agent through Paseo to give a second opinion on the current task, with a self-contained briefing and no permission to edit files.
O2 Review Loop
openobserve/openobserve
Splits a change into planner, coder and independent reviewer roles: you confirm a spec, a subagent implements it, and a separate reviewer checks each round's local WIP commit.
Paseo Committee
getpaseo/paseo
Forms a two-agent committee with contrasting profiles to analyze a stuck problem in parallel, reconcile their views and return a consensus plan without editing files.
Mission Control Agent API
builderz-labs/mission-control
Teaches an agent to use the Mission Control dashboard API: register, send heartbeats, fetch assigned tasks, report progress and disconnect, with API key auth.
Paseo Agent Handoff
getpaseo/paseo
Hands off the current task, including context, decisions and failed attempts, to a fresh agent through Paseo by writing a self-contained briefing prompt and launching that agent.
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Related
Categories
Questions about Error Propagation
What does Error Propagation do?
Trace error propagation through a multi-agent session by agent depth — where failures originated, the depth at which they appeared, and how they cascaded up to parent agents — using the Agent…. Error Propagation is an agent skill from hoangsonww/Claude-Code-Agent-Monitor. Trace error propagation through a multi-agent session by agent depth — where failures originated, the depth at which they appeared, and how they cascaded up to parent agents — using the Agent Monitor workflow intelligence API and the session event stream.
When should I use Error Propagation?
Error Propagation fits situations like: A multi-agent run failed and you need to find the origin and blast radius of the failure; tasks that involve Multi-agent orchestration.
How do I install Error Propagation in Claude Code?
Run `npx skills add hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a claude-code`. Or copy the skill folder (plugins/ccam-workflows/skills/error-propagation in hoangsonww/Claude-Code-Agent-Monitor) into .claude/skills/error-propagation in your project. Claude Code loads it when a task matches its description.
How do I install Error Propagation in Codex?
Run `npx skills add hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a codex`. Or copy the skill folder (plugins/ccam-workflows/skills/error-propagation in hoangsonww/Claude-Code-Agent-Monitor) into .agents/skills/error-propagation in your project. Codex loads it when a task matches its description.
Can I use Error Propagation 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 hoangsonww/Claude-Code-Agent-Monitor --skill error-propagation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/error-propagation, .gemini/skills/error-propagation, .github/skills/error-propagation and .opencode/skills/error-propagation in your project.
What does Error Propagation need to run?
Going by SKILL.md and its folder, Error Propagation needs the command-line tools its instructions call (npm).
Does Error Propagation access the network?
SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Error Propagation 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 Error Propagation use?
Error Propagation 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 Error Propagation use?
About 688 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.
What are the alternatives to Error Propagation?
Skills that share tags, products or a category with Error Propagation: Orca CLI (stablyai/orca, 88k stars), Paseo Advisor Second Opinion (getpaseo/paseo, 20k stars), O2 Review Loop (openobserve/openobserve, 22k stars) and Paseo Committee (getpaseo/paseo, 20k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Error Propagation?
hoangsonww (a GitHub user) maintains it in hoangsonww/Claude-Code-Agent-Monitor, which has 1,054 GitHub stars. The repository holds 78 skills in this directory. The repository was last updated on October 8, 2026.
Source: hoangsonww/Claude-Code-Agent-Monitor on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.