Trending Skills
The hottest skills gaining momentum in the community right now.
editing-agents-md
by PostHog
Decide whether a rule belongs in an AGENTS.md / CLAUDE.md file, and write it so it holds. Use before adding, editing, or removing any instruction in a root or nested AGENTS.md, when a convention keeps getting broken and someone proposes documenting it, when reviewing a diff that touches one, or when a file has grown and needs a trim. Carries the enforcement-tag convention ([lint: <id>] / [review]), the six configuration smells to check against, and the size budget. Trigger terms: AGENTS.md, CLAUDE.md, agent instructions, context file, add a rule, document this convention, the file is too long.
maintaining-python-tests
by PostHog
Maintains existing pytest and Django test suites without weakening correctness. Use when asked to reduce Python test runtime or CI work, investigate slow pytest families, remove stale migration tests, consolidate repeated setup, improve Python test ownership, or measure whether a test optimization worked after merge. Ranks work by measured cost, applies the writing-tests value gate to existing coverage, preserves distinct behavior cases, validates isolation after shared-fixture changes, and separates testcase work from pytest-suite wall time. For an intermittent failure, use fixing-flaky-tests instead.
solver
by atopile
"How the Faebryk parameter solver works (Sets/Literals, Parameters, Expressions), the core invariants enforced during mutation, and practical workflows for debugging and extending the solver. Use when implementing or modifying constraint solving, parameter bounds, or debugging expression simplification."
hogli
by PostHog
PostHog developer CLI and repo tooling reference. Use when the user mentions hogli, asks about repo CLI tools, bin scripts, Makefiles, how to run/build/test/lint, or any dev environment commands.
auditing-llm-gateway-parity
by PostHog
Audits services/llm-gateway against PostHog/ai-gateway and updates services/llm-gateway/PARITY.md from current implementation evidence. Use when either gateway changes auth, attribution, billing, endpoints, providers, models, routing, or metadata; when reviewing a Python gateway change; or when asked to refresh, verify, or report gateway parity. This skill updates the parity record but does not migrate callers.
run-posthog
by PostHog
Start, inspect, and drive the PostHog dev stack. Use for /run and /verify on this repo — when asked to launch PostHog, check whether the stack is healthy, inspect a running process, or verify a UI change against the live app.
depot-github-runners
by PostHog
Configures Depot-managed GitHub Actions runners as a drop-in replacement for GitHub-hosted runners. Use when setting up or migrating GitHub Actions workflows to use Depot runners, choosing runner sizes (CPU/RAM), configuring runs-on labels, setting up ARM or Windows or macOS runners, troubleshooting GitHub Actions runner issues, configuring egress filtering, using Depot Cache with GitHub Actions, or running Dagger/Dependabot on Depot runners. Also use when the user mentions depot-ubuntu, depot-windows, depot-macos runner labels, or asks about faster/cheaper GitHub Actions runners. Not for Depot CI, the separate engine that reads .depot/workflows/ — that is the depot-ci skill.
triaging-web-analytics-support
by PostHog
Triage web analytics support tickets end to end: enumerate open tickets from the in-app conversations product and their Zendesk mirrors, classify each into a diagnostic shape (frontend crash, "two numbers don't match", traffic count drop, tracker not loading / undercounting vs a competitor, ad-platform integration error, channel type misclassification), run the matching playbook, and produce reply drafts plus fix PRs where warranted. Use when asked to triage the web analytics support channel, investigate a web analytics Zendesk or conversations ticket, or explain metric discrepancies a customer reported. Internal-only: queries cross-customer support and usage data; never copy customer names or their traffic numbers into public artifacts (PRs, issues, commits).
managing-github-actions-secrets
by PostHog
Creates and updates GitHub Actions secrets for PostHog workflows. Use when adding a new CI secret, rotating an existing secret, wiring a workflow to an API token, package registry credential, deploy key, or any value referenced via ${{ secrets.* }} in .github/workflows/.
improving-python-coverage
by streamlit
Runs Python unit tests with coverage, analyzes coverage reports, and implements meaningful tests to increase coverage by ~0.2%. Use when you want to systematically improve Python test coverage with high-value test cases.
generating-changelog
by streamlit
Generates polished website release notes between two git tags for docs.streamlit.io. Use when preparing a new Streamlit release or reviewing changes between versions.
changelog-generator
by openakita
Automatically creates user-facing changelogs from git commits by analyzing commit history, categorizing changes, and transforming technical commits into clear, customer-friendly release notes. Turns hours of manual changelog writing into minutes of automated generation.
fix
by facebook
Use when you have lint errors, formatting issues, or before committing code to ensure it passes CI.
querying-local-postgres
by PostHog
Run read-only SQL against the local Postgres app database (SELECT, EXPLAIN, EXPLAIN ANALYZE on SELECT). Default local URL postgres://posthog:posthog@localhost:5432/posthog; else DATABASE_URL. Use when querying the local DB, inspecting tables, debugging data, or analyzing query plans. Mutations are strictly forbidden.
SpeedTree Subsystem Audit
by matiaszanolli
"Audit the SpeedTree (.spt) TLV walker (crates/spt), the placeholder-billboard import, and the TREE→billboard/wind wiring for Oblivion / FO3 / FNV"
Tooling and Host-Contract Audit
by matiaszanolli
"Audit of tooling and host-facing contracts — SDK (Studio snapshots, typed commands, StorageUtil compat), debug server + protocol + byro-dbg, debug-ui panels, launcher/boot-request/settings-io handoff, install detection, byro-detect, texture-upscale"
Scripting Runtime Audit (M30 / M47.0–M47.3)
by matiaszanolli
"Deep audit of the M30/M47 scripting runtime — AST→ECS recognizer chain (decline-on-unmodeled), fragment/quest-stage dispatch, ECS event/timer/condition/trigger systems, cell-loader script attach, scene/package/cinematic playback, legacy ObScript quest execution (M47.3), extender-compat provider layer. Compiler frontends (.pex decompiler, .psc parser) are /audit-papyrus"
Regression Verification Audit
by matiaszanolli
"Verify closed bug fixes haven't regressed — dynamically discovers and checks"
UI Audit: Scaleform (R4 + M48) and MenuXml (M48.4-M48.7)
by matiaszanolli
"Deep audit of the game UI tracks — Scaleform/SWF (Ruffle host bridge, AVM1/AVM2 profiles, ABC adapter injection, archive navigator, offscreen wgpu readback, overlay upload, input routing) and the Oblivion/FO3/FNV MenuXml track (eval, layout, raster) with both HUD drivers"
Audit-Skill Sync
by matiaszanolli
"Re-sync every audit skill against the code that landed since the last sync — closed-issue sweep, delta read, premise re-measure, owner-map fold-in"
Parser Discipline Audit (archives, materials, packfiles, sidecars)
by matiaszanolli
"Parser-discipline audit of the non-NIF, non-ESM readers of untrusted game-archive input — BSA/BA2/CSG archives, BGSM/BGEM, Starfield CDB, Havok HKX packfiles, FaceGen sidecars, MenuXml parse side, Steam VDF/ACF"
Session Close
by matiaszanolli
"End-of-session ritual — diff stated facts against ground truth and propose synchronised edits across ROADMAP.md / HISTORY.md / README.md"
Performance Audit
by matiaszanolli
"Audit GPU/CPU performance — hot paths, allocations, draw batching, GPU memory pressure, SSBO sizing, telemetry"
Papyrus Frontend Audit (crates/pex + crates/papyrus)
by matiaszanolli
"Deep audit of the Papyrus compiler frontends — .pex reader + 5-phase decompiler (Champollion port, crates/pex) and the .psc lexer/Pratt parser (crates/papyrus): untrusted-input bounds, decompiler soundness, depth caps"