Use when modifying, running, screenshotting, clicking through, or verifying the Voltius Tauri app's UI — drives the live headless dev build through the tauri-docker MCP so changes can be seen and interacted with, not just compiled.
Review GitHub pull requests with Memtrace's local graph-backed review engine. Use when the user asks to review a GitHub pull request, run Memtrace code review, post Memtrace review comments, create a PR with a review step, or publish local graph-backed review findings to GitHub. Prefer the review_github_pr MCP tool over manual diff inspection. Do not use for local working-tree diffs — that is the built-in /code-review; this skill is for GitHub PRs via review_github_pr.
Replay the graph diff of one episode — a single git commit or working-tree save — to inspect what it changed: added/modified/removed symbols and edges. Use when the user asks what one commit or save changed in the graph, why code looks this way, or wants to inspect implementation attempts, reversions, past reasoning, or abandoned approaches across commits and working-tree episodes. Do not use git log or Grep for graph-level episode diffs; Memtrace replays indexed episode records. Do NOT use for module-level summaries or date-range change history — use memtrace-evolution.
Route code discovery, debugging, flow tracing, how-code-works questions, and pre-edit rationale checks in indexed source-code repos to Memtrace graph plus Cortex decision tools. Use first before searching/reading code, and before editing, refactoring, deleting, or re-picking an approach that may have a recorded decision, ban, convention, or contract. Do not use Grep, Glob, rg, find, or manual file browsing for code discovery when Memtrace is indexed. Zero results are not permission to grep; diagnose/reindex with Memtrace.
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.
Find dead code, complexity hotspots, and refactoring candidates in indexed source code. Use when the user asks about source-code quality, dead code, unused functions, zero callers, complexity, cyclomatic complexity, hotspots, refactoring candidates, or code smell questions. Do not use Grep, Glob, rg, or manual reference search for unused code; Memtrace uses graph reachability and complexity metrics.
Prove kitcn fixture and scenario runtime the right way. Use when validating prepared scenario apps, auth smoke and browser lanes, or deciding whether a scenario key should use `scenario:dev` or `scenario:check`.
Characterize a slow / stuck course-update worker on dashboard.wikiedu.org or outreachdashboard.wmflabs.org. Use this skill when asked to investigate why a course update is taking unusually long, hung, or running for many hours, or to estimate the scale-of-work of an in-flight update. Pure HTTP recon against public APIs — never SSH into prod.
Create test scenario JSON files for Output SDK workflows. Use when creating test inputs, documenting expected behaviors, or setting up workflow testing.