feat: add variants support for reasoning effort configuration

[activadee]

Summary

• Add variants parameter across all AI-powered actions (pr-review, issue-label, doc-sync, changeset)
• Update action.yml templates with optional variants input that defaults to UNDEFINED
• Modify OpenCode tools to handle variants parameter with proper validation
• Add comprehensive test coverage for variants functionality in scripts
• Update CLI templates to include variants support in generated workflows

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

This PR adds an optional variants input parameter across multiple GitHub Actions (pr-review, changeset, doc-sync, issue-label) with a default value of "UNDEFINED" to control OpenCode variant settings like reasoning effort. Conditional logic passes the --variants flag to opencode run only when the input is defined. Documentation, templates, and tests are updated accordingly.

Changes

Cohort / File(s)	Summary
GitHub Action Inputs actions/changeset/action.yml, actions/doc-sync/action.yml, actions/issue-label/action.yml, actions/pr-review/action.yml	Added new optional variants input (default: "UNDEFINED") with conditional logic to only include --variants argument when not UNDEFINED
Action Documentation actions/changeset/skill.md, actions/doc-sync/skill.md, actions/issue-label/skill.md, actions/pr-review/skill.md	Added "Action Inputs" section describing the new optional variants parameter
Script Argument Schemas scripts/apply-labels.ts, scripts/write-changeset.ts	Added optional variants: string field to ArgsSchema objects; updated module imports in write-changeset.ts to use node: prefix
CLI Templates src/cli/templates/changeset.ts, src/cli/templates/doc-sync.ts, src/cli/templates/issue-label.ts, src/cli/templates/pr-review.ts	Added variants: "UNDEFINED" to respective action step inputs
Workflow Configuration .github/workflows/doc-sync.yml, .github/workflows/issue-label.yml	Added model: 'opencode/big-pickle' parameter to action steps
Project Documentation README.md, AGENTS.md	Added examples and explanation of optional variants input with UNDEFINED behavior
Test Coverage test/installer.test.js, test/scripts-variants.test.js	Updated imports to use node: prefix; added assertions for variants in generated YAML; created new test suite verifying variants presence in apply-labels and write-changeset schemas

Possibly related PRs

• feat: add variants support for reasoning effort configuration #19: Introduces the same optional variants input (default "UNDEFINED") across the same GitHub Actions, scripts, templates, and test coverage.
• feat: add AI-powered changeset workflow for monorepo releases #13: Modifies changeset action and write-changeset.ts tooling that receives the new variants input parameter in this PR.

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: adding variants support for reasoning effort configuration across the codebase.
Description check	✅ Passed	The description is directly related to the changeset, providing a clear summary of the variants parameter additions across actions, templates, and tests.

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[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@scripts/submit-review.ts`:
- Line 34: Remove the unused "variants" entry from the ArgsSchema definition in
submit-review.ts: edit the ArgsSchema (where "variants:
z.string().optional().describe(...)" is declared) and delete that field so the
schema only contains actual tool arguments; also scan the execute function
(execute) to confirm no other code references "variants" and remove any dead
imports or typings that were only used for it.