Agent skill

Signal Trace

by juanandresgs in juanandresgs/claude-ctrl

Trace systemic brittleness from symptom to root cause. An agent skill from juanandresgs/claude-ctrl.

No licenceAuto-check: notesDevelopment

Install Signal Trace

skills CLI
$ npx skills add juanandresgs/claude-ctrl --skill signal-trace -a claude-code

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

GitHub CLI
$ gh skill install juanandresgs/claude-ctrl signal-trace --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/juanandresgs/claude-ctrl.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/signal-trace .claude/skills/signal-trace && 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
signal-trace
GitHub stars
193
Token cost
~1.5k tokens
SKILL.md length
794 words
Files
1
Skills in repo
10
Repo updated
First seen
Licence
None found

At a glance

Trace systemic brittleness from symptom to root cause. An agent skill from juanandresgs/claude-ctrl.

  • Works in 7 steps: Symptom Capture → Mechanism Trace → Production Data Validation → …
  • Tasks that involve Root cause analysis
  • SKILL.md covers When to use this, The Protocol, Anti-patterns this skill catches and Example invocation
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Signal Trace is an agent skill from juanandresgs/claude-ctrl. Trace systemic brittleness from symptom to root cause. Data-flow analysis of hooks, state, and dispatch paths to find where signals break, race, or carry garbage. Produces single-gate fixes, not fallback chains.

Its SKILL.md is about 1.5k 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 Development, covering Root cause analysis. The repository describes itself as: DEPRECATED / UNMAINTAINED — historical reference only. Do not install or rely on this project.

When your agent uses it

  • Tasks that involve Root cause analysis

Example prompts

  • “/signal-trace”

Requirements

  • Pre-approved tools (allowed-tools): Bash, Read, Grep, Glob, Agent, WebSearch

Workflow steps

7 steps, taken from the step headings in SKILL.md.

  1. Symptom Capture
  2. Mechanism Trace
  3. Production Data Validation
  4. Ordering & Timing Analysis
  5. Root Cause Synthesis
  6. Single-Gate Fix
  7. Evidence Report

What it can do on your machine

Read from SKILL.md and the folder at commit dfbdd82. 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:

    • Bash
    • Read
    • Grep
    • Glob
    • Agent
    • WebSearch

    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

Signal Trace loads about 1.5k tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 794 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~56
When it runs · the whole SKILL.md, loaded when a task matches
~1.5k

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, Grep, Glob, Agent, WebSearch

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 794 words (~1,485 tokens).

“When something misbehaves in the hook/agent/dispatch system, trace the actual data flow from producer to consumer. Find where signals break, race, or carry garbage. Produce a single-gate fix — never a fallback chain.”

— opening of SKILL.md by juanandresgs
name
signal-trace
allowed-tools
Bash, Read, Grep, Glob, Agent, WebSearch
argument-hint
[symptom description — what misbehaved and how]
context
fork
agent
general-purpose

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/signal-trace of juanandresgs/claude-ctrl.

Open the folder on GitHubat commit dfbdd82

Compare with similar skills

Signal Trace 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.

Signal Trace compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Signal Trace this skilljuanandresgs/claude-ctrl193—~1.5kAutomated safety check: NotesNone
Octocode Code Researchbgauryy/octocode949—~1.5kAutomated safety check: PassMIT
Muse Code Product Doctorasgeirtj/system_prompts_leaks69k—~3.5kAutomated safety check: PassCC0-1.0
PRP Implementation PlannerWirasm/prp2.3k—~4.1kAutomated safety check: PassMIT
PRP PlanWirasm/prp2.3k—~4kAutomated safety check: PassMIT
Optimize Protocol0x0funky/vibehq-hub195—~3.2kAutomated safety check: PassMIT

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  • Octocode Code Research

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    949 GitHub stars~1.5k tokensUpdated 2 days ago
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  • Muse Code Product Doctor

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  • Turns a PRD, issue or description into an implementation-ready plan grounded in codebase evidence, adding root-cause analysis for bugs and publishing issue plans back to the issue.

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Questions about Signal Trace

What does Signal Trace do?

Trace systemic brittleness from symptom to root cause. An agent skill from juanandresgs/claude-ctrl. Signal Trace is an agent skill from juanandresgs/claude-ctrl. Trace systemic brittleness from symptom to root cause.

When should I use Signal Trace?

Signal Trace fits situations like: tasks that involve Root cause analysis.

How do I install Signal Trace in Claude Code?

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

How do I install Signal Trace in Codex?

Run `npx skills add juanandresgs/claude-ctrl --skill signal-trace -a codex`. Or copy the skill folder (skills/signal-trace in juanandresgs/claude-ctrl) into .agents/skills/signal-trace in your project. Codex loads it when a task matches its description.

Can I use Signal Trace 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 juanandresgs/claude-ctrl --skill signal-trace -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/signal-trace, .gemini/skills/signal-trace, .github/skills/signal-trace and .opencode/skills/signal-trace in your project.

What does Signal Trace need to run?

SKILL.md names no scripts, command-line tools or credentials: Signal Trace is instructions for the agent only. Its frontmatter pre-approves these tools: Bash, Read, Grep, Glob, Agent, WebSearch.

Does Signal Trace 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 Signal Trace 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 Signal Trace use?

No licence was found for Signal Trace or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Signal Trace use?

About 1.5k tokens (SKILL.md is roughly 5.9k 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 Signal Trace?

Skills that share tags, products or a category with Signal Trace: Octocode Code Research (bgauryy/octocode, 949 stars), Muse Code Product Doctor (asgeirtj/system_prompts_leaks, 69k stars), PRP Implementation Planner (Wirasm/prp, 2.3k stars) and PRP Plan (Wirasm/prp, 2.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Signal Trace?

juanandresgs (a GitHub user) maintains it in juanandresgs/claude-ctrl, which has 193 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on August 7, 2026.

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