[Vivswan]

What this changes

.github/scripts/release-pipeline.ts        1563 lines, every section in one file
->
.github/scripts/release-pipeline.ts         205  the header, the step constants, main()
.github/scripts/release-pipeline/git.ts     136  the git helpers every section shares, ancestry, position, manifest
.github/scripts/release-pipeline/tags.ts    522  packaged commits and the refs that name them (build tags, vX.Y.Z, latest, vX)
.github/scripts/release-pipeline/anchor.ts  223  release-please's boundary: the anchor, the boundary check, the anchor check
.github/scripts/release-pipeline/npm.ts     514  the pre-release version, the verdicts, the publish, the floor
.github/scripts/release-pipeline/draft.ts    46  the draft release's source and assets

test/scripts/release-pipeline.test.ts      2224 lines
->
test/scripts/release-pipeline.test.ts      1257  tags, anchor, draft, config
test/scripts/release-pipeline-npm.test.ts   997  the npm half

How

• Pure moves: every function keeps its text; only imports, exports, and file headers are new.
• One entry file stays at the invoked path, holding main() and the pause knob it reads.
• A directory, not lib siblings: lib/ holds helpers several scripts share; these sections belong to one script.
• Every importer follows: the build test, the three workflow tests, and the comments that named the old file.

Proof

• Census: test( and test.each( call sites 71 before and after (47 + 24). Exports 37 before and after, plus 12 helpers exported for cross-module use (listed below). Lines 1563 to 1646 (script) and 2224 to 2254 (tests), the difference being headers and imports.
• Tests: the six touched test files 228 green, typecheck, biome, knip, and arch lint green.

Technical details

• Newly exported from release-pipeline/git.ts: assertFullHistory, BOT_IDENTITY, FULL_SHA, git, gitOrNo, gitWithEnv, isAncestor, manifestVersionAt, push, resolveCommit, tryGit; from draft.ts: RELEASE_ASSETS (read by main).
• mainPosition moved to git.ts rather than npm.ts: tags.ts names build tags by it, so it is shared, not npm's.
• Moved text keeps its long lines (25 over 150 columns across the modules and the npm test); no moved line was edited.
• Library: none applies to a move.
• Outside this PR: CONTRIBUTING.md line 60 still names .github/scripts/release-pipeline.ts as where the topology lives. The entry file still exists, so the sentence stays true.
• Files: .github/scripts/release-pipeline.ts, .github/scripts/release-pipeline/{git,tags,anchor,npm,draft}.ts, .github/workflows/{update-release,update-release-pr}.yml (comments), test/scripts/release-pipeline{,-npm,-build}.test.ts, test/workflows/{checks-workflow,post-green-workflow,npm-publish-workflows}.test.ts.

[Copilot]

Copilot review overview

🟢 Approval recommended

The refactor preserves the command interface, updates all importers, and retains the complete 71-test census.

Review effort: Balanced
Findings: None

What changed in this PR

Splits the release pipeline into focused modules while preserving the workflow entry point and behavior introduced by #517.

Changes:

• Extracts git, tag, anchor, npm, and draft-release logic into dedicated modules.
• Moves npm tests into a separate suite and updates imports.
• Updates workflow comments and verification tests for the new paths.

File	Description
.github/​scripts/​release-pipeline.ts	Retains subcommand dispatch.
.github/​scripts/​release-pipeline/​git.ts	Houses shared git helpers.
.github/​scripts/​release-pipeline/​tags.ts	Houses packaging and tag logic.
.github/​scripts/​release-pipeline/​anchor.ts	Houses release boundary logic.
.github/​scripts/​release-pipeline/​npm.ts	Houses npm publishing logic.
.github/​scripts/​release-pipeline/​draft.ts	Houses draft release reads.
.github/​workflows/​update-release.yml	Updates topology documentation path.
.github/​workflows/​update-release-pr.yml	Updates implementation references.
test/​scripts/​release-pipeline.test.ts	Retains non-npm pipeline tests.
test/​scripts/​release-pipeline-npm.test.ts	Contains extracted npm tests.
test/​scripts/​release-pipeline-build.test.ts	Imports tag operations from their module.
test/​workflows/​checks-workflow.test.ts	Imports the anchor branch constant.
test/​workflows/​post-green-workflow.test.ts	Imports draft step outputs.
test/​workflows/​npm-publish-workflows.test.ts	Reads the relocated npm floor.

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[Copilot]

Copilot review overview

🟢 Approval recommended

The refactor preserves behavior, updates all identified importers, and retains comprehensive test coverage.

Review effort: Balanced
Findings: None