Agent skill

Memtrace Incident Investigation

by syncable-dev in syncable-dev/memtrace-public

Investigate source-code bugs, incidents, regressions, production issues, and failures to root cause with Memtrace symbol search, impact, call graph, and temporal history.

Custom licenceAuto-check passedDevelopment

Install Memtrace Incident Investigation

skills CLI
$ npx skills add syncable-dev/memtrace-public --skill memtrace-incident-investigation -a claude-code

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

GitHub CLI
$ gh skill install syncable-dev/memtrace-public memtrace-incident-investigation --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/syncable-dev/memtrace-public.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/memtrace-skills/skills/memtrace-incident-investigation .claude/skills/memtrace-incident-investigation && 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
memtrace-incident-investigation
GitHub stars
487
Token cost
~1.8k tokens
SKILL.md length
805 words
Files
1
Skills in repo
27
Repo updated
First seen
Licence
Custom licence

At a glance

Investigate source-code bugs, incidents, regressions, production issues, and failures to root cause with Memtrace symbol search, impact, call graph, and temporal history.

  • Works in 10 steps: Establish the timeline → List changes near the incident → Identify hotspot files and symbols → …
  • The user asks about root cause analysis
  • SKILL.md covers Overview, Steps, Report: Root Cause Analysis and Tool selection guide for…, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Memtrace Incident Investigation is an agent skill from syncable-dev/memtrace-public. Investigate source-code bugs, incidents, regressions, production issues, and failures to root cause with Memtrace symbol search, impact, call graph, and temporal history. Use when the user asks about root cause analysis, what broke, or what changed when debugging a failure. Do not start with Grep, Glob, rg, find, or manual file search for code causes. For plain what-changed questions without a failure, use memtrace-evolution.

Its SKILL.md is about 1.8k 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 and Codebase onboarding. The repository describes itself as: Structural memory for AI coding agents. Bi-temporal graph, MCP-native, zero LLM calls. Cursor · Claude Code · Codex · DeepSeek Harness · Hermes · VS Code · Windsurf.

When your agent uses it

  • The user asks about root cause analysis
  • What changed when debugging a failure

Example prompts

  • “/memtrace-incident-investigation”

Workflow steps

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

  1. Establish the timeline
  2. List changes near the incident
  3. Identify hotspot files and symbols
  4. Check for unexpected changes to stable code
  5. Assess the blast radius
  6. Trace execution flows
  7. Build the full timeline for the suspect
  8. Correlate adds vs removes per episode
  9. Check historical coupling (cochange)
  10. Replay the sub-commit implementation history (if needed)

What it can do on your machine

Read from SKILL.md and the folder at commit 3a3084d. 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 (its code samples are json).

    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

Memtrace Incident Investigation loads about 1.8k tokens when it runs. Until then it costs about 115 tokens; SKILL.md has 805 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~115
When it runs · the whole SKILL.md, loaded when a task matches
~1.8k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 805 words (~1,849 tokens).

“Root cause investigation workflow for incidents, regressions, and production issues. Uses get_evolution to list changes near the incident time, then traces blast radius and execution flows to identify the likely cause.”

— opening of SKILL.md by syncable-dev, Custom licence
name
memtrace-incident-investigation

Read the full SKILL.md on GitHub

Files

Just SKILL.md in plugins/memtrace-skills/skills/memtrace-incident-investigation of syncable-dev/memtrace-public.

Open the folder on GitHubat commit 3a3084d

Compare with similar skills

Memtrace Incident Investigation 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.

Memtrace Incident Investigation compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Memtrace Incident Investigation this skillsyncable-dev/memtrace-public487—~1.8kAutomated safety check: PassCustom licence
Octocode Code Researchbgauryy/octocode949—~1.5kAutomated safety check: PassMIT
CodeScope Codebase Graph AnalysisQwenLM/qwen-code28k1 repos~9.3kAutomated safety check: PassApache-2.0
Codegraph QAQwenLM/qwen-code-examples143—~4.3kAutomated safety check: PassNone
Codebase Knowledge Graph Q&AEgonex-AI/Understand-Anything86k1 repos~1.2kAutomated safety check: PassMIT
Code Design Rationale Investigatorcursor/plugins10k9 repos~2.6kAutomated safety check: PassNone

Similar skills

  • Octocode Code Research

    bgauryy/octocode

    Researches code with evidence: traces callers, imports and cross-repo links, diagnoses failures and reports findings with exact file and line references and a confidence label.

    949 GitHub stars~1.5k tokensUpdated 4 days ago
    DevelopmentAuto-check passed
  • Answers questions about code structure, history, bugs and PR risk using a CodeScope knowledge graph and semantic index built from the repository.

    28k GitHub starsUsed in 1 repo~9.3k tokens
    DevelopmentAuto-check passed
  • Codegraph QA

    QwenLM/qwen-code-examples

    Use CodeScope to analyze any indexed codebase via its graph database (neug) and vector index (zvec).

    143 GitHub stars~4.3k tokensUpdated 4 mo ago
    DevelopmentAuto-check passed
  • Codebase Knowledge Graph Q&A

    Egonex-AI/Understand-Anything

    Answers questions about a codebase by searching a prebuilt knowledge graph of its files, functions, classes and dependencies, not by rereading every source file.

    86k GitHub starsUsed in 1 repo~1.2k tokens
    DevelopmentAuto-check passed
  • Official

    Digs into why code is shaped the way it is by checking git history, pull requests and connected tools in parallel, then reporting a cited read on the tradeoffs.

    10k GitHub starsUsed in 9 repos~2.6k tokens
    DevelopmentAuto-check passed
  • Understand Explain

    Egonex-AI/Understand-Anything

    Gives an in-depth explanation of one file, function or module by reading the project's knowledge graph and checking that the graph is still fresh.

    86k GitHub starsUsed in 1 repo~1.3k tokens
    DevelopmentAuto-check passed

More from syncable-dev/memtrace-public

All 27 skills in this repo
  • Memtrace Change Impact Analysis

    syncable-dev/memtrace-public

    Compute what a planned source-code change will break — blast radius, affected processes, cross-repo callers, temporal stability, and Cortex decision-memory constraints — and produce a risk-rated…

    487 GitHub stars~1.4k tokensUpdated today
    Auto-check passed
  • Memtrace Cochange

    syncable-dev/memtrace-public

    Find files that historically co-change with a target symbol or file, ranked by co-occurrence across git episodes.

    487 GitHub stars~961 tokensUpdated today
    Auto-check passed
  • Memtrace Code Review

    syncable-dev/memtrace-public

    Review GitHub pull requests with Memtrace's local graph-backed review engine.

    487 GitHub stars~818 tokensUpdated today
    Auto-check passed
  • Memtrace Codebase Exploration

    syncable-dev/memtrace-public

    Map an indexed source-code repo into a structured overview — scale, communities, central symbols, execution flows, API surface, recent activity.

    487 GitHub stars~1.3k tokensUpdated today
    Auto-check passed
  • Memtrace Continuous Memory

    syncable-dev/memtrace-public

    Keep the Memtrace index fresh while editing by watching a repo for live, incremental re-indexing.

    487 GitHub stars~645 tokensUpdated today
    Auto-check passed
  • Memtrace Decision Memory

    syncable-dev/memtrace-public

    Use Cortex decision memory through the normal Memtrace MCP tools.

    487 GitHub stars~1.9k tokensUpdated today
    Auto-check passed

Categories

Questions about Memtrace Incident Investigation

What does Memtrace Incident Investigation do?

Investigate source-code bugs, incidents, regressions, production issues, and failures to root cause with Memtrace symbol search, impact, call graph, and temporal history. Memtrace Incident Investigation is an agent skill from syncable-dev/memtrace-public. Investigate source-code bugs, incidents, regressions, production issues, and failures to root cause with Memtrace symbol search, impact, call graph, and temporal history.

When should I use Memtrace Incident Investigation?

Memtrace Incident Investigation fits situations like: the user asks about root cause analysis; what changed when debugging a failure.

How do I install Memtrace Incident Investigation in Claude Code?

Run `npx skills add syncable-dev/memtrace-public --skill memtrace-incident-investigation -a claude-code`. Or copy the skill folder (plugins/memtrace-skills/skills/memtrace-incident-investigation in syncable-dev/memtrace-public) into .claude/skills/memtrace-incident-investigation in your project. Claude Code loads it when a task matches its description.

How do I install Memtrace Incident Investigation in Codex?

Run `npx skills add syncable-dev/memtrace-public --skill memtrace-incident-investigation -a codex`. Or copy the skill folder (plugins/memtrace-skills/skills/memtrace-incident-investigation in syncable-dev/memtrace-public) into .agents/skills/memtrace-incident-investigation in your project. Codex loads it when a task matches its description.

Can I use Memtrace Incident Investigation 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 syncable-dev/memtrace-public --skill memtrace-incident-investigation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/memtrace-incident-investigation, .gemini/skills/memtrace-incident-investigation, .github/skills/memtrace-incident-investigation and .opencode/skills/memtrace-incident-investigation in your project.

What does Memtrace Incident Investigation need to run?

SKILL.md names no scripts, command-line tools or credentials: Memtrace Incident Investigation is instructions for the agent only.

Does Memtrace Incident Investigation 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 Memtrace Incident Investigation 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 Memtrace Incident Investigation use?

Memtrace Incident Investigation has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Memtrace Incident Investigation use?

About 1.8k tokens (SKILL.md is roughly 7.4k 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 Memtrace Incident Investigation?

Skills that share tags, products or a category with Memtrace Incident Investigation: Octocode Code Research (bgauryy/octocode, 949 stars), CodeScope Codebase Graph Analysis (QwenLM/qwen-code, 28k stars), Codegraph QA (QwenLM/qwen-code-examples, 143 stars) and Codebase Knowledge Graph Q&A (Egonex-AI/Understand-Anything, 86k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Memtrace Incident Investigation?

syncable-dev (a GitHub organization) maintains it in syncable-dev/memtrace-public, which has 487 GitHub stars. The repository holds 27 skills in this directory. The repository was last updated on October 8, 2026.

Source: syncable-dev/memtrace-public on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.