Emitter Prep For Pr Agent Skill

Emitter Prep for PR

Prepares language emitter changes for pull request by running build/format/lint,

checking for a changeset, and pushing to the remote branch.

This skill is for language emitter packages only:

• http-client-python
• http-client-csharp
• http-client-java

Do NOT use this skill for core TypeSpec packages (compiler, http, openapi3, etc.).

Workflow

Step 1: Determine the emitter package

Figure out which emitter package the user is working on from context (cwd, recent

changes, or ask). The package will be under packages/<package-name>/.

Step 2: Build, format, and lint the emitter package

cd ~/Desktop/github/typespec/packages/PACKAGE_NAME

# Build
npm run build

# Format (includes both TypeScript and Python formatting)
npm run format

# Lint (emitter-only is fine for quick validation)
npm run lint -- --emitter

If any step fails, report the error and stop. Do not proceed.

Step 3: Run format at repo root

cd ~/Desktop/github/typespec
pnpm format

Important: pnpm format may touch files outside the emitter package (e.g.,

.devcontainer/, other packages). When staging changes in Step 6, **only stage

files within the emitter package directory** (packages/PACKAGE_NAME/) and

.chronus/changes/ and .github/skills/. Discard any formatting changes to

unrelated files with git checkout -- <file>.

Step 4: Check for existing changeset

Check if a changeset already exists for the current branch:

cd ~/Desktop/github/typespec
BRANCH=$(git rev-parse --abbrev-ref HEAD)
ls .chronus/changes/ | grep -i "$BRANCH" || echo "NO_CHANGESET"

• If a changeset exists: Skip to Step 6 (no need to create one).
• If NO_CHANGESET: Proceed to Step 5 to create one.

Step 5: Create changeset (only if none exists)

Ask the user what kind of change this is, or infer from context:

• changeKind - one of: internal, fix, feature, deprecation, breaking, dependencies
• message - concise user-focused description

Then create the file:

cd ~/Desktop/github/typespec
BRANCH=$(git rev-parse --abbrev-ref HEAD)
TIMESTAMP=$(date +"%Y-%m-%d-%H-%M-%S")
FILENAME=".chronus/changes/${BRANCH}-${TIMESTAMP}.md"

---
changeKind: <KIND>
packages:
  - "<PACKAGE>"
---

<MESSAGE>

Step 6: Stage, commit, and push

cd ~/Desktop/github/typespec
git add -A
git status

Show the user what will be committed and ask for confirmation. Then:

BRANCH=$(git rev-parse --abbrev-ref HEAD)
git commit -m "<COMMIT_MESSAGE>

Co-authored-by: Copilot <[email protected]>"

# Always push to origin (user's fork), never upstream
git push origin "$BRANCH"

Changeset Guidelines

changeKind reference

• internal: Tests, CI/CD, refactoring, docs, skills — not user-facing
• fix: Bug fixes users would notice
• feature: New user-facing capabilities
• deprecation: Marking something as deprecated
• breaking: Removing or changing behavior incompatibly
• dependencies: Dependency version bumps

Message examples

• internal: "Improve CI pipeline performance and test infrastructure"
• fix: "Fix incorrect deserialization of nullable enum properties"
• feature: "Add support for XML serialization in request bodies"

Package names

| Folder | Package Name |

| -------------------- | ------------------------------ |

| http-client-python | @typespec/http-client-python |

| http-client-csharp | @typespec/http-client-csharp |

| http-client-java | @typespec/http-client-java |