feat: add variants support for reasoning effort configuration

.github/workflows/doc-sync.yml

@@ -17,6 +17,8 @@ jobs:
           fetch-depth: 0
 
       - uses: activadee/open-workflows/actions/doc-sync@main
+        with:
+          model: 'opencode/big-pickle'
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           OPENCODE_AUTH: ${{ secrets.OPENCODE_AUTH }}

.github/workflows/issue-label.yml

@@ -13,6 +13,8 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: activadee/open-workflows/actions/issue-label@main
+        with:
+          model: 'opencode/big-pickle'
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           OPENCODE_AUTH: ${{ secrets.OPENCODE_AUTH }}

AGENTS.md

@@ -103,6 +103,8 @@ bun run test       # Run tests
 **AI-powered actions:**
 ```yaml
 - uses: activadee/open-workflows/actions/pr-review@main
+  with:
+    variants: UNDEFINED  # Optional OpenCode variants setting
   env:
     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     OPENCODE_AUTH: ${{ secrets.OPENCODE_AUTH }}  # or ANTHROPIC_API_KEY

README.md

@@ -37,6 +37,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: activadee/open-workflows/actions/pr-review@main
+        with:
+          variants: UNDEFINED
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
@@ -95,6 +97,7 @@ jobs:
       - uses: activadee/open-workflows/actions/changeset@main
         with:
           mode: commit  # or 'comment' to suggest via PR comment
+          variants: UNDEFINED
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
@@ -127,6 +130,10 @@ Or manually set the secret:
 gh secret set OPENCODE_AUTH < ~/.local/share/opencode/auth.json
 ```
 
+## Variants
+
+AI actions accept an optional `variants` input to control OpenCode reasoning effort. Use `UNDEFINED` to omit the setting entirely.
+
 ## CLI Options
 
 ```bash

actions/changeset/action.yml

@@ -11,6 +11,10 @@ inputs:
     description: 'Operation mode: commit (auto-commit changeset) or comment (suggest via PR comment)'
     required: false
     default: 'commit'
+  variants:
+    description: 'Optional OpenCode variants setting (e.g., reasoning effort). Set to UNDEFINED to omit.'
+    required: false
+    default: 'UNDEFINED'
 
 runs:
   using: 'composite'
@@ -40,7 +44,11 @@ runs:
     - name: Generate Changeset
       shell: bash
       run: |
-        opencode run --model "${{ inputs.model }}" \
+        VARIANTS_ARG=()
+        if [ "${{ inputs.variants }}" != "UNDEFINED" ]; then
+          VARIANTS_ARG=(--variants "${{ inputs.variants }}")
+        fi
+        opencode run "${VARIANTS_ARG[@]}" --model "${{ inputs.model }}" \
           "Load the changeset skill. Generate changeset for PR ${{ github.event.pull_request.number }} in mode: ${{ inputs.mode }}"
       env:
         GITHUB_TOKEN: ${{ github.token }}

actions/changeset/skill.md

@@ -4,6 +4,10 @@ description: AI-powered changeset generation for monorepo releases. Analyzes PR
 license: MIT
 ---
 
+## Action Inputs
+
+- `variants` (optional): OpenCode variants setting for reasoning effort. Use `UNDEFINED` to omit.
+
 ## What I Do
 
 Analyze pull request changes and generate [Changesets](https://github.com/changesets/changesets) files that capture:

actions/doc-sync/action.yml

@@ -7,6 +7,10 @@ inputs:
     description: 'Model to use for doc analysis'
     required: false
     default: 'anthropic/claude-sonnet-4-5'
+  variants:
+    description: 'Optional OpenCode variants setting (e.g., reasoning effort). Set to UNDEFINED to omit.'
+    required: false
+    default: 'UNDEFINED'
 
 runs:
   using: 'composite'
@@ -41,7 +45,11 @@ runs:
     - name: Sync Documentation
       shell: bash
       run: |
-        opencode run --model "${{ inputs.model }}" \
+        VARIANTS_ARG=()
+        if [ "${{ inputs.variants }}" != "UNDEFINED" ]; then
+          VARIANTS_ARG=(--variants "${{ inputs.variants }}")
+        fi
+        opencode run "${VARIANTS_ARG[@]}" --model "${{ inputs.model }}" \
           "Load the doc-sync skill and sync documentation for PR ${{ github.event.pull_request.number }}"
       env:
         GITHUB_TOKEN: ${{ github.token }}

actions/doc-sync/skill.md

@@ -4,6 +4,10 @@ description: Keep documentation in sync with code changes. Analyzes PR diffs and
 license: MIT
 ---
 
+## Action Inputs
+
+- `variants` (optional): OpenCode variants setting for reasoning effort. Use `UNDEFINED` to omit.
+
 ## What I Do
 
 Analyze pull request changes and update documentation to reflect code changes. Uses native OpenCode tools (`write`, `bash`) for file operations and git commits.

actions/issue-label/action.yml

@@ -7,6 +7,10 @@ inputs:
     description: 'Model to use for labeling'
     required: false
     default: 'anthropic/claude-haiku-4-5'
+  variants:
+    description: 'Optional OpenCode variants setting (e.g., reasoning effort). Set to UNDEFINED to omit.'
+    required: false
+    default: 'UNDEFINED'
 
 runs:
   using: 'composite'
@@ -36,7 +40,11 @@ runs:
     - name: Label Issue
       shell: bash
       run: |
-        opencode run --model "${{ inputs.model }}" \
+        VARIANTS_ARG=()
+        if [ "${{ inputs.variants }}" != "UNDEFINED" ]; then
+          VARIANTS_ARG=(--variants "${{ inputs.variants }}")
+        fi
+        opencode run "${VARIANTS_ARG[@]}" --model "${{ inputs.model }}" \
           "Load the issue-label skill. Label issue ${{ github.event.issue.number }}"
       env:
         GITHUB_TOKEN: ${{ github.token }}

actions/issue-label/skill.md

@@ -4,6 +4,10 @@ description: Automatically apply appropriate labels to GitHub issues based on co
 license: MIT
 ---
 
+## Action Inputs
+
+- `variants` (optional): OpenCode variants setting for reasoning effort. Use `UNDEFINED` to omit.
+
 ## What I Do
 
 Analyze GitHub issue content and apply up to 3 appropriate labels to help maintainers triage and search issues effectively.

actions/pr-review/action.yml

@@ -7,6 +7,10 @@ inputs:
     description: 'Model to use for review'
     required: false
     default: 'anthropic/claude-sonnet-4-5'
+  variants:
+    description: 'Optional OpenCode variants setting (e.g., reasoning effort). Set to UNDEFINED to omit.'
+    required: false
+    default: 'UNDEFINED'
 
 runs:
   using: 'composite'
@@ -36,7 +40,11 @@ runs:
     - name: Review PR
       shell: bash
       run: |
-        opencode run --model "${{ inputs.model }}" \
+        VARIANTS_ARG=()
+        if [ "${{ inputs.variants }}" != "UNDEFINED" ]; then
+          VARIANTS_ARG=(--variants "${{ inputs.variants }}")
+        fi
+        opencode run "${VARIANTS_ARG[@]}" --model "${{ inputs.model }}" \
           "Load the pr-review skill. Review PR ${{ github.event.pull_request.number }}"
       env:
         GITHUB_TOKEN: ${{ github.token }}

actions/pr-review/skill.md

@@ -4,6 +4,10 @@ description: AI-powered pull request code review focusing on correctness, securi
 license: MIT
 ---
 
+## Action Inputs
+
+- `variants` (optional): OpenCode variants setting for reasoning effort. Use `UNDEFINED` to omit.
+
 ## What I Do
 
 Review pull request changes systematically and post findings as a sticky PR comment. Focus on **real issues that matter** - bugs, security risks, and stability problems that would block a merge in a typical code review.

scripts/apply-labels.ts

@@ -14,6 +14,7 @@ const ArgsSchema = z.object({
     })
   ).optional().describe('New labels to create before applying'),
   explanation: z.string().describe('Brief explanation of label choices'),
+  variants: z.string().optional().describe('Optional OpenCode variants setting (e.g., reasoning effort)'),
 }).superRefine((value, ctx) => {
   const labelCount = value.labels.length + (value.newLabels?.length ?? 0);
 

scripts/write-changeset.ts

@@ -1,7 +1,7 @@
 import { tool } from "@opencode-ai/plugin"
-import * as fs from 'fs';
-import * as path from 'path';
-import * as crypto from 'crypto';
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+import * as crypto from 'node:crypto';
 
 const z = tool.schema;
 
@@ -13,6 +13,7 @@ const ArgsSchema = z.object({
   packages: z.object({}).catchall(BumpSchema).describe('Object mapping package names to bump types (major, minor, patch)'),
   summary: z.string().min(10).max(200).describe('Short summary in imperative mood (e.g., "Add retry logic")'),
   body: z.string().optional().describe('Optional additional details or migration notes'),
+  variants: z.string().optional().describe('Optional OpenCode variants setting (e.g., reasoning effort)'),
 }).superRefine((value, ctx) => {
   const packageCount = Object.keys(value.packages).length;
 

src/cli/templates/changeset.ts

@@ -22,6 +22,7 @@ jobs:
       - uses: activadee/open-workflows/actions/changeset@main
         with:
           mode: commit
+          variants: "UNDEFINED"
         env:
           GITHUB_TOKEN: \${{ secrets.GITHUB_TOKEN }}${useOAuth ? ENV_OPENCODE_AUTH : ENV_API_KEY}
 `;

src/cli/templates/doc-sync.ts

@@ -19,6 +19,8 @@ jobs:
           fetch-depth: 0
 
       - uses: activadee/open-workflows/actions/doc-sync@main
+        with:
+          variants: "UNDEFINED"
         env:
           GITHUB_TOKEN: \${{ secrets.GITHUB_TOKEN }}${useOAuth ? ENV_OPENCODE_AUTH : ENV_API_KEY}
 `;

src/cli/templates/issue-label.ts

@@ -15,6 +15,8 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: activadee/open-workflows/actions/issue-label@main
+        with:
+          variants: "UNDEFINED"
         env:
           GITHUB_TOKEN: \${{ secrets.GITHUB_TOKEN }}${useOAuth ? ENV_OPENCODE_AUTH : ENV_API_KEY}
 `;

src/cli/templates/pr-review.ts

@@ -16,6 +16,8 @@ jobs:
       - uses: actions/checkout@v4
 
       - uses: activadee/open-workflows/actions/pr-review@main
+        with:
+          variants: "UNDEFINED"
         env:
           GITHUB_TOKEN: \${{ secrets.GITHUB_TOKEN }}${useOAuth ? ENV_OPENCODE_AUTH : ENV_API_KEY}
 `;

test/installer.test.js

@@ -1,7 +1,7 @@
 import { describe, expect, it, beforeEach, afterEach } from 'bun:test';
-import * as fs from 'fs';
-import * as path from 'path';
-import * as os from 'os';
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+import * as os from 'node:os';
 import {
   installWorkflows,
   checkExistingWorkflows,
@@ -44,6 +44,7 @@ describe('installer workflow functionality', () => {
         'utf-8'
       );
       expect(content).toContain('activadee/open-workflows/actions/pr-review@main');
+      expect(content).toContain('variants: "UNDEFINED"');
     });
 
     it('includes ANTHROPIC_API_KEY for non-OAuth', () => {
@@ -205,6 +206,7 @@ describe('installer workflow functionality', () => {
         'utf-8'
       );
       expect(content).toContain('activadee/open-workflows/actions/changeset@main');
+      expect(content).toContain('variants: "UNDEFINED"');
     });
 
     it('includes ANTHROPIC_API_KEY for changeset non-OAuth', () => {

test/scripts-variants.test.js

@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'bun:test';
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+
+describe('tool variants arguments', () => {
+  it('does not include variants in submit-review args schema', () => {
+    const content = fs.readFileSync(path.join(import.meta.dir, '../scripts/submit-review.ts'), 'utf-8');
+    expect(content).not.toContain("variants: z.string().optional()");
+  });
+
+  it('adds variants to apply-labels args schema', () => {
+    const content = fs.readFileSync(path.join(import.meta.dir, '../scripts/apply-labels.ts'), 'utf-8');
+    expect(content).toContain("variants: z.string().optional()");
+  });
+
+  it('adds variants to write-changeset args schema', () => {
+    const content = fs.readFileSync(path.join(import.meta.dir, '../scripts/write-changeset.ts'), 'utf-8');
+    expect(content).toContain("variants: z.string().optional()");
+  });
+});