Official agent skill

Sensei

by microsoft in microsoft/GitHub-Copilot-for-Azure

Iteratively improve skill frontmatter to achieve good routing test coverage.

OfficialMITAuto-check passedTesting & QA

Install Sensei

skills CLI

$ npx skills add microsoft/GitHub-Copilot-for-Azure --skill sensei -a claude-code

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

GitHub CLI

$ gh skill install microsoft/GitHub-Copilot-for-Azure sensei --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/microsoft/GitHub-Copilot-for-Azure.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/sensei .claude/skills/sensei && 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/

Paste into Claude Code

Install the "sensei" agent skill from https://github.com/microsoft/GitHub-Copilot-for-Azure/tree/main/.github/skills/sensei into .claude/skills/sensei/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sensei", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/microsoft/GitHub-Copilot-for-Azure/tree/main/.github/skills/sensei

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add microsoft/GitHub-Copilot-for-Azure --skill sensei -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install microsoft/GitHub-Copilot-for-Azure sensei --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/microsoft/GitHub-Copilot-for-Azure.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.github/skills/sensei .agents/skills/sensei && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "sensei" agent skill from https://github.com/microsoft/GitHub-Copilot-for-Azure/tree/main/.github/skills/sensei into .agents/skills/sensei/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sensei", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add microsoft/GitHub-Copilot-for-Azure --skill sensei -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install microsoft/GitHub-Copilot-for-Azure sensei --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/microsoft/GitHub-Copilot-for-Azure.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.github/skills/sensei .cursor/skills/sensei && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "sensei" agent skill from https://github.com/microsoft/GitHub-Copilot-for-Azure/tree/main/.github/skills/sensei into .cursor/skills/sensei/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sensei", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/microsoft/GitHub-Copilot-for-Azure.git --path .github/skills/sensei

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add microsoft/GitHub-Copilot-for-Azure --skill sensei -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install microsoft/GitHub-Copilot-for-Azure sensei --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/microsoft/GitHub-Copilot-for-Azure.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.github/skills/sensei .gemini/skills/sensei && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "sensei" agent skill from https://github.com/microsoft/GitHub-Copilot-for-Azure/tree/main/.github/skills/sensei into .gemini/skills/sensei/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sensei", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install microsoft/GitHub-Copilot-for-Azure sensei

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add microsoft/GitHub-Copilot-for-Azure --skill sensei -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/microsoft/GitHub-Copilot-for-Azure.git skills-src && mkdir -p .github/skills && cp -r skills-src/.github/skills/sensei .github/skills/sensei && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "sensei" agent skill from https://github.com/microsoft/GitHub-Copilot-for-Azure/tree/main/.github/skills/sensei into .github/skills/sensei/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sensei", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add microsoft/GitHub-Copilot-for-Azure --skill sensei -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install microsoft/GitHub-Copilot-for-Azure sensei --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/microsoft/GitHub-Copilot-for-Azure.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.github/skills/sensei .opencode/skills/sensei && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "sensei" agent skill from https://github.com/microsoft/GitHub-Copilot-for-Azure/tree/main/.github/skills/sensei into .opencode/skills/sensei/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sensei", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: sensei
GitHub stars: 255
Used in: 1 other repo
Token cost: ~861 tokens
SKILL.md length: 222 words
Files: 2 (incl. references)
Skills in repo: 56
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Iteratively improve skill frontmatter to achieve good routing test coverage.

Works in 8 steps: READ - Load… → VERIFY - Compare the skill frontmatter… → SCAFFOLD - If evals/{skill-name}/… → …
Tasks that involve Test coverage
SKILL.md covers Help, Main Loop, Constraints and Related Skills
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Sensei is an agent skill from microsoft/GitHub-Copilot-for-Azure, published by the product's own GitHub organization. Iteratively improve skill frontmatter to achieve good routing test coverage. WHEN: run sensei, sensei help, improve skill routing

Its SKILL.md is about 860 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/CONVENTIONS.md`).

It sits in Testing & QA, covering Test coverage. It works with Microsoft Azure. The repository describes itself as: GitHub Copilot for Azure. The licence is MIT.

When your agent uses it

Tasks that involve Test coverage

Example prompts

“/sensei”

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

READ - Load plugins/{plugin}/skills/{skill-name}/SKILL.md, and vally eval suites in evals/{skill-name}/*.yaml.
VERIFY - Compare the skill frontmatter with conventions in CONVENTIONS. If the skill's frontmatter violates any written convention, notify…
SCAFFOLD - If evals/{skill-name}/ doesn't exist, follow instructions in vally-eval skill to scaffold a set of routing tests. The routing…
IMPROVE - If the skill description doesn't already have WHEN: triggers, add them.
TEST - Follow instructions in vally-eval skill to run the routing tests. If there are failed tests, suggest fixes.
SUMMARY - Display before/after comparison with unimplemented suggestions.
PROMPT - Ask user to commit the fixes or take any alternative actions.
REPEAT - Go to step 2 (max 5 iterations per skill)

What it can do on your machine

Read from SKILL.md and the folder at commit fcf2f3b. 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.
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

Sensei loads about 861 tokens when it runs, and up to ~1.4k if it reads all its reference files. Until then it costs about 34 tokens; SKILL.md has 222 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~34
When it runs · the whole SKILL.md, loaded when a task matches: ~861
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~1.4k

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

The full file from microsoft/GitHub-Copilot-for-Azure at commit fcf2f3b, republished under its MIT licence (© microsoft). 222 words, ~861 tokens.

Download SKILL.mdSave it as .claude/skills/sensei/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: sensei
description: Iteratively improve skill frontmatter to achieve good routing test coverage. WHEN: run sensei, sensei help, improve skill routing
license: MIT
metadata.author: Microsoft
metadata.version: 1.0.6

Help

When user says "sensei help" or asks how to use sensei, show this:

╔══════════════════════════════════════════════════════════════════╗
║  SENSEI - Skill Frontmatter Compliance Improver                  ║
╠══════════════════════════════════════════════════════════════════╣
║                                                                  ║
║  USAGE:                                                          ║
║    Run sensei on <skill-name>              # Single skill        ║
║    Run sensei on <skill1>, <skill2>, ...   # Multiple skills     ║
║    Run sensei on all skills                # All skills          ║
║                                                                  ║
║  EXAMPLES:                                                       ║
║    Run sensei on appinsights-instrumentation                     ║
║    Run sensei on azure-ai, azure-compute                         ║
║                                                                  ║
║  WHAT IT DOES:                                                   ║
║    1. READ      - Load skill's SKILL.md and tests                ║
║    2. VERIFY    - Compare skill frontmatter with convention      ║
║    3. SCAFFOLD  - Create tests from frontmatter if missing       ║
║    4. IMPROVE   - Add WHEN: triggers                             ║
║    5. TEST      - Run tests, fix if needed                       ║
║    6. SUMMARY   - Show before/after with suggestions             ║
║    7. PROMPT    - Ask: Commit, Create Issue, or Skip?            ║
║    8. REPEAT    - Until routing tests pass                       ║
╚══════════════════════════════════════════════════════════════════╝

Main Loop

For each skill, execute this loop until the frontmatter aligns with convention, have thorough routing tests AND routing tests pass:

READ - Load plugins/{plugin}/skills/{skill-name}/SKILL.md, and vally eval suites in evals/{skill-name}/*.yaml.
VERIFY - Compare the skill frontmatter with conventions in CONVENTIONS. If the skill's frontmatter violates any written convention, notify the user and propose a fix to align the frontmatter with the convention.
SCAFFOLD - If evals/{skill-name}/ doesn't exist, follow instructions in vally-eval skill to scaffold a set of routing tests. The routing tests test if the skill can be invoked for target user prompts. Generate user prompts that match the target scenario of the skill's description.
IMPROVE - If the skill description doesn't already have WHEN: triggers, add them.
TEST - Follow instructions in vally-eval skill to run the routing tests. If there are failed tests, suggest fixes.
SUMMARY - Display before/after comparison with unimplemented suggestions.
PROMPT - Ask user to commit the fixes or take any alternative actions.
REPEAT - Go to step 2 (max 5 iterations per skill)

Constraints

Only modify plugins/{plugin}/skills/ - these are the Azure skills used by Copilot
Files in .github/skills/ should be left as is
Max 5 iterations per skill before moving on

vally-eval - vally eval suite writing guidelines

Files

SKILL.md and 1 other file (references) in .github/skills/sensei of microsoft/GitHub-Copilot-for-Azure.

SKILL.md
references/CONVENTIONS.md

Open the folder on GitHubat commit fcf2f3b

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in microsoft/GitHub-Copilot-for-Azure, which our catalogue first saw on October 7, 2026.

majiayu000/claude-skill-registryskills/ai-llm/sensei

Compare with similar skills

Sensei 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.

Sensei compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Sensei this skillmicrosoft/GitHub-Copilot-for-Azure	255	1 repos	~861	Automated safety check: Pass	MIT	today
Verify PRAzure/LogicAppsUX	114	—	~2.4k	Automated safety check: Pass	MIT	today
Code ReviewAzure/sap-automation	145	—	~7k	Automated safety check: Pass	MIT	today
Test Writing WorkflowiOfficeAI/AionUi	33k	1 repos	~1.2k	Automated safety check: Pass	Apache-2.0	28 days ago
Evaluate PR Testsdotnet/maui	23k	—	~2.9k	Automated safety check: Pass	MIT	today
Integration Testtracewayapp/traceway	1.6k	1 repos	~2.4k	Automated safety check: Pass	MIT	2 days ago

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Works with

Microsoft Azure

Questions about Sensei

What does Sensei do?

Iteratively improve skill frontmatter to achieve good routing test coverage. Sensei is an agent skill from microsoft/GitHub-Copilot-for-Azure, published by the product's own GitHub organization. Iteratively improve skill frontmatter to achieve good routing test coverage.

When should I use Sensei?

Sensei fits situations like: tasks that involve Test coverage.

How do I install Sensei in Claude Code?

Run `npx skills add microsoft/GitHub-Copilot-for-Azure --skill sensei -a claude-code`. Or copy the skill folder (.github/skills/sensei in microsoft/GitHub-Copilot-for-Azure) into .claude/skills/sensei in your project. Claude Code loads it when a task matches its description.

How do I install Sensei in Codex?

Run `npx skills add microsoft/GitHub-Copilot-for-Azure --skill sensei -a codex`. Or copy the skill folder (.github/skills/sensei in microsoft/GitHub-Copilot-for-Azure) into .agents/skills/sensei in your project. Codex loads it when a task matches its description.

Can I use Sensei 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 microsoft/GitHub-Copilot-for-Azure --skill sensei -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sensei, .gemini/skills/sensei, .github/skills/sensei and .opencode/skills/sensei in your project.

What does Sensei need to run?

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

Does Sensei 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 Sensei 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 Sensei use?

Sensei is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Sensei use?

About 861 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 529 tokens, read only when the agent opens those files.

What are the alternatives to Sensei?

Skills that share tags, products or a category with Sensei: Verify PR (Azure/LogicAppsUX, 114 stars), Code Review (Azure/sap-automation, 145 stars), Test Writing Workflow (iOfficeAI/AionUi, 33k stars) and Evaluate PR Tests (dotnet/maui, 23k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sensei?

microsoft (a GitHub organization, an official publisher) maintains it in microsoft/GitHub-Copilot-for-Azure, which has 255 GitHub stars. The repository holds 56 skills in this directory. The repository was last updated on October 8, 2026.

Source: microsoft/GitHub-Copilot-for-Azure on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Sensei

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Help

Main Loop

Constraints

Related Skills

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from microsoft/GitHub-Copilot-for-Azure

Related

Questions about Sensei