microsoft/vscode

4618

memory-leak-audit Official Audit code for memory leaks and disposable issues. Use when reviewing event listeners, DOM handlers, lifecycle callba…

microsoft/vscode

2.8K

4620

fix-errors Official Guidelines for fixing unhandled errors from the VS Code error telemetry dashboard. Use when investigating error-telem…

microsoft/vscode

2.8K

4635

azure-pipelines Official Use when validating Azure DevOps pipeline changes for the VS Code build. Covers queueing builds, checking build statu…

microsoft/vscode

2.8K

4675

accessibility Official Primary accessibility skill for VS Code. REQUIRED for new feature and contribution work, and also applies to updates …

microsoft/vscode

2.8K

4918

author-contributions Official Identify all files a specific author contributed to on a branch vs its upstream, tracing code through renames.

microsoft/vscode

2.7K

4857

sessions Official Core principles and workflow router for changes to the Agents Window under src/vs/sessions.

microsoft/vscode

2.7K

4961

update-screenshots Official Update the committed blocks-ci screenshot hashes after the "Screenshots & Tests" check fails, or investigate a screen…

microsoft/vscode

2.6K

5085

tool-rename-deprecation Official Ensure renamed built-in tool references preserve backward compatibility. Use when renaming a toolReferenceName, tool …

microsoft/vscode

2.6K

5825

hygiene Official Use when making code changes to ensure they pass VS Code's hygiene checks. Covers the pre-commit hook, unicode restri…

microsoft/vscode

2.2K

10

agent-sessions-layout Agents workbench layout — covers the fixed layout structure, grid configuration, part visibility, editor modal, title…

microsoft/vscode

918

11

launch Launch Code OSS (VS Code from sources) into an isolated throwaway profile with unique debug ports so you can drive it…

microsoft/vscode

254

12

component-fixtures Use when creating or updating component fixtures for screenshot testing, or when designing UI components to be fixtur…

microsoft/vscode

235

13

add-policy Use when adding, modifying, or reviewing VS Code configuration policies. Covers the full policy lifecycle from regist…

microsoft/vscode

201

14

unit-tests Use when running unit tests in the VS Code repo. Covers the runTests tool, scripts/test.sh (macOS/Linux) and scripts/…

microsoft/vscode

197

15

chat-customizations-editor Use when working on the Chat Customizations editor — the management UI for agents, skills, instructions, hooks, promp…

microsoft/vscode

177

16

fix-ci-failures Investigate and fix CI failures on a pull request. Use when CI checks fail on a PR branch — covers finding the PR, id…

microsoft/vscode

174

17

integration-tests Use when running integration tests in the VS Code repo. Covers scripts/test-integration.sh (macOS/Linux) and scripts/…

microsoft/vscode

150

18

heap-snapshot-analysis Analyze V8 heap snapshots to investigate memory leaks and retention issues. Use when given .heapsnapshot files, asked…

microsoft/vscode

130

19

cpu-profile-analysis Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-*.json). Use when: profiling performance…

microsoft/vscode

126

20

auto-perf-optimize Run agent-driven VS Code performance or memory investigations. Use when asked to launch Code OSS, automate a VS Code …

microsoft/vscode

122

21

vscode-dev-workbench Use when the user wants to run the vscode.dev server locally and exercise the VS Code workbench or Agents window in t…

microsoft/vscode

114

22

chat-perf Run chat perf benchmarks and memory leak checks against the local dev build or any published VS Code version. Use whe…

microsoft/vscode

109

23

otel OpenTelemetry instrumentation for the Copilot Chat extension — covers the four agent execution paths, the IOTelServic…

microsoft/vscode

97

24

code-oss-logs Find and read timestamped process logs from Code OSS dev builds, including main.log, renderer.log, extension host log…

microsoft/vscode

86

25

ux-css-layout VS Code CSS conventions, file organization, class naming, standard sizes, SplitView/Grid layout, scrollable content, …

microsoft/vscode

55

26

ux-theming VS Code theming, color tokens, widget styles, focus indicators, and high-contrast theme support. Use when registering…

microsoft/vscode

52

27

design-philosophy The VS Code design philosophy — a shared Values→Principles→Moves vocabulary for reasoning about UI in design terms in…

microsoft/vscode

42

28

smoke-tests Use when running VS Code smoke tests or working on smoke-test CI steps. Covers npm run smoketest / smoketest-no-compi…

microsoft/vscode

37

29

integrated-browser Use this when working on the VS Code integrated browser ("browserView") to understand its architecture and mental mod…

microsoft/vscode

30

30

agent-host-logs Analyze Agent Host debug log exports. Use when given an ah-logs or ahp-logs zip/folder, an Export Agent Host Debug Lo…

microsoft/vscode

26

31

symbolicate-crash-dump Symbolicate a native VS Code crash dump (.dmp) using electron-minidump. Use when given a crash dump file, asked to sy…

microsoft/vscode

26

32

agent-host-e2e-tests Use when writing, recording, updating, validating, or troubleshooting the agent host end-to-end tests under src/vs/pl…

microsoft/vscode

25

33

flaky-smoke-tests Diagnose intermittent VS Code Electron smoke-test failures from the Azure DevOps Flaky Smoke Tests pipeline (definiti…

microsoft/vscode

19

34

chat-pet-sprite-creation Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/In…

microsoft/vscode

16

35

policy-and-managed-settings Use whenever adding, modifying, or reviewing any Copilot, agent, LLM, AI, tool, permission, sandbox, MCP, model, tele…

microsoft/vscode

16

36

sweeper-fix Implement a VS Code Sweeper fix spec — fetch the sweeper's agent-fixable review record from its public state repo, im…

microsoft/vscode

16

37

customizations-in-the-agent-host Architecture and hard-won debugging lessons for customization enablement (plugins, MCP servers, agents, skills, instr…

microsoft/vscode

15

38

feedback-learning Classify and record explicit corrective feedback without turning skills or instructions into append-only knowledge du…

microsoft/vscode

15

39

validate-ui-scenario Use when reproducing a UI bug or verifying a fix by driving a real VS Code window end to end and capturing evidence. …

microsoft/vscode

12

40

agent-host-chat-contributions Build and review cross-cutting agent-host chat behavior through lifecycle contributions. Use when adding turn lifecyc…

microsoft/vscode

10

41

code-review Perform a code review of the current session's changes. Use when the user requests a code review via the Run Code Rev…

microsoft/vscode

8

42

commit Commit staged or unstaged changes with an AI-generated commit message that matches the repository's existing commit s…

microsoft/vscode

5

43

troubleshoot Investigate unexpected behavior in the current Copilot agent session by analyzing its event log. Use when the user as…

microsoft/vscode

5

44

update-codex-sdk Update VS Code's bundled @openai/codex dependency to a version available from the private VS Code npm feed, regenerat…

microsoft/vscode

5

45

update-skills Create or update repository skills and instructions when major learnings are discovered during a session. Use when th…

microsoft/vscode

5

46

agent-customization **WORKFLOW SKILL** — Create, update, review, fix, or debug VS Code agent customization files (.instructions.md, .prom…

microsoft/vscode

4

47

create-pr Create a pull request for the current session. Use when the user wants to open a PR with the session's changes.

microsoft/vscode

4

48

project-setup-info-context7 Comprehensive setup steps to help the user create complete project structures in a VS Code workspace. This tool is de…

microsoft/vscode

4

49

act-on-feedback Act on user feedback attached to the current session. Use when the user submits feedback on the session's changes via…

microsoft/vscode

3

50

create-draft-pr Create a draft pull request for the current session. Use when the user wants to open a draft PR with the session's ch…

microsoft/vscode

3