Add Continue support (Fission-AI#402)

* OpenSpec 支持 Continue 插件

* add update

* Update spec.md

* fix: correct Continue frontmatter format and README ordering

- Fix Continue frontmatter to use proper YAML format with opening `---`
  and required `invokable: true` field for slash command availability
- Fix README table ordering: Continue should be after Codex alphabetically
- Remove unused TemplateManager import from continue.ts
- Fix trailing whitespace in update.test.ts
- Fix double blank line in init.test.ts
- Fix extra blank line in cli-init/spec.md
- Update tests to verify correct frontmatter format

---------

Co-authored-by: ajuanli <ajuanli@tencent.com>
Co-authored-by: Tabish Bidiwale <30385142+TabishB@users.noreply.github.com>
Co-authored-by: Tabish Bidiwale <tabishbidiwale@gmail.com>

Author: 3 people

CHANGELOG.md

@@ -86,6 +86,8 @@
 
 ### Minor Changes
 
+- Add Continue slash command support so `openspec init` can generate `.continue/prompts/openspec-*.prompt` files with MARKDOWN frontmatter and `$ARGUMENTS` placeholder, and refresh them on `openspec update`.
+
 - Add Antigravity slash command support so `openspec init` can generate `.agent/workflows/openspec-*.md` files with description-only frontmatter and `openspec update` refreshes existing workflows alongside Windsurf.
 
 ## 0.15.0

README.md

@@ -103,6 +103,7 @@ These tools have built-in OpenSpec commands. Select the OpenSpec integration whe
 | **Cline** | Workflows in `.clinerules/workflows/` directory (`.clinerules/workflows/openspec-*.md`) |
 | **CodeBuddy Code (CLI)** | `/openspec:proposal`, `/openspec:apply`, `/openspec:archive` (`.codebuddy/commands/`) — see [docs](https://www.codebuddy.ai/cli) |
 | **Codex** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (global: `~/.codex/prompts`, auto-installed) |
+| **Continue** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.continue/prompts/`) |
 | **CoStrict** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.cospec/openspec/commands/`) — see [docs](https://costrict.ai)|
 | **Crush** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` (`.crush/commands/openspec/`) |
 | **Cursor** | `/openspec-proposal`, `/openspec-apply`, `/openspec-archive` |

openspec/specs/cli-init/spec.md

@@ -211,6 +211,12 @@ The init command SHALL generate slash command files for supported editors using
 - **AND** populate each file from shared templates so command text matches other tools
 - **AND** each template includes instructions for the relevant OpenSpec workflow stage
 
+#### Scenario: Generating slash commands for Continue
+- **WHEN** the user selects Continue during initialization
+- **THEN** create `.continue/prompts/openspec-proposal.prompt`, `.continue/prompts/openspec-apply.prompt`, and `.continue/prompts/openspec-archive.prompt`
+- **AND** populate each file from shared templates so command text matches other tools
+- **AND** each template includes instructions for the relevant OpenSpec workflow stage
+
 #### Scenario: Generating slash commands for Factory Droid
 - **WHEN** the user selects Factory Droid during initialization
 - **THEN** create `.factory/commands/openspec-proposal.md`, `.factory/commands/openspec-apply.md`, and `.factory/commands/openspec-archive.md`

openspec/specs/cli-update/spec.md

@@ -75,6 +75,11 @@ The update command SHALL refresh existing slash command files for configured too
 - **AND** include Cline-specific Markdown heading frontmatter
 - **AND** ensure templates include instructions for the relevant workflow stage
 
+#### Scenario: Updating slash commands for Continue
+- **WHEN** `.continue/prompts/` contains `openspec-proposal.prompt`, `openspec-apply.prompt`, and `openspec-archive.prompt`
+- **THEN** refresh each file using shared templates
+- **AND** ensure templates include instructions for the relevant workflow stage
+
 #### Scenario: Updating slash commands for Crush
 - **WHEN** `.crush/commands/` contains `openspec/proposal.md`, `openspec/apply.md`, and `openspec/archive.md`
 - **THEN** refresh each file using shared templates

src/core/config.ts

@@ -24,6 +24,7 @@ export const AI_TOOLS: AIToolOption[] = [
   { name: 'Cline', value: 'cline', available: true, successLabel: 'Cline' },
   { name: 'Codex', value: 'codex', available: true, successLabel: 'Codex' },
   { name: 'CodeBuddy Code (CLI)', value: 'codebuddy', available: true, successLabel: 'CodeBuddy Code' },
+  { name: 'Continue', value: 'continue', available: true, successLabel: 'Continue (VS Code / JetBrains / Cli)' },
   { name: 'CoStrict', value: 'costrict', available: true, successLabel: 'CoStrict' },
   { name: 'Crush', value: 'crush', available: true, successLabel: 'Crush' },
   { name: 'Cursor', value: 'cursor', available: true, successLabel: 'Cursor' },

src/core/configurators/slash/continue.ts

@@ -0,0 +1,51 @@
+import { SlashCommandConfigurator } from './base.js';
+import { SlashCommandId } from '../../templates/index.js';
+
+const FILE_PATHS: Record<SlashCommandId, string> = {
+  proposal: '.continue/prompts/openspec-proposal.prompt',
+  apply: '.continue/prompts/openspec-apply.prompt',
+  archive: '.continue/prompts/openspec-archive.prompt'
+};
+
+/*
+ * Continue .prompt format requires YAML frontmatter:
+ * ---
+ * name: commandName
+ * description: description
+ * invokable: true
+ * ---
+ * Body...
+ *
+ * The 'invokable: true' field is required to make the prompt available as a slash command.
+ * We use 'openspec-proposal' as the name so the command becomes /openspec-proposal.
+ */
+const FRONTMATTER: Record<SlashCommandId, string> = {
+  proposal: `---
+name: openspec-proposal
+description: Scaffold a new OpenSpec change and validate strictly.
+invokable: true
+---`,
+  apply: `---
+name: openspec-apply
+description: Implement an approved OpenSpec change and keep tasks in sync.
+invokable: true
+---`,
+  archive: `---
+name: openspec-archive
+description: Archive a deployed OpenSpec change and update specs.
+invokable: true
+---`
+};
+
+export class ContinueSlashCommandConfigurator extends SlashCommandConfigurator {
+  readonly toolId = 'continue';
+  readonly isAvailable = true;
+
+  protected getRelativePath(id: SlashCommandId): string {
+    return FILE_PATHS[id];
+  }
+
+  protected getFrontmatter(id: SlashCommandId): string {
+    return FRONTMATTER[id];
+  }
+}

src/core/configurators/slash/registry.ts

@@ -19,6 +19,7 @@ import { QwenSlashCommandConfigurator } from './qwen.js';
 import { RooCodeSlashCommandConfigurator } from './roocode.js';
 import { AntigravitySlashCommandConfigurator } from './antigravity.js';
 import { IflowSlashCommandConfigurator } from './iflow.js';
+import { ContinueSlashCommandConfigurator } from './continue.js';
 
 export class SlashCommandRegistry {
   private static configurators: Map<string, SlashCommandConfigurator> = new Map();
@@ -44,6 +45,7 @@ export class SlashCommandRegistry {
     const roocode = new RooCodeSlashCommandConfigurator();
     const antigravity = new AntigravitySlashCommandConfigurator();
     const iflow = new IflowSlashCommandConfigurator();
+    const continueTool = new ContinueSlashCommandConfigurator();
 
     this.configurators.set(claude.toolId, claude);
     this.configurators.set(codeBuddy.toolId, codeBuddy);
@@ -65,6 +67,7 @@ export class SlashCommandRegistry {
     this.configurators.set(roocode.toolId, roocode);
     this.configurators.set(antigravity.toolId, antigravity);
     this.configurators.set(iflow.toolId, iflow);
+    this.configurators.set(continueTool.toolId, continueTool);
   }
 
   static register(configurator: SlashCommandConfigurator): void {

test/core/init.test.ts

@@ -1151,6 +1151,61 @@ describe('InitCommand', () => {
       expect(codeBuddyChoice.configured).toBe(true);
     });
 
+    it('should create Continue slash command files with templates', async () => {
+      queueSelections('continue', DONE);
+
+      await initCommand.execute(testDir);
+
+      const continueProposal = path.join(
+        testDir,
+        '.continue/prompts/openspec-proposal.prompt'
+      );
+      const continueApply = path.join(
+        testDir,
+        '.continue/prompts/openspec-apply.prompt'
+      );
+      const continueArchive = path.join(
+        testDir,
+        '.continue/prompts/openspec-archive.prompt'
+      );
+
+      expect(await fileExists(continueProposal)).toBe(true);
+      expect(await fileExists(continueApply)).toBe(true);
+      expect(await fileExists(continueArchive)).toBe(true);
+
+      const proposalContent = await fs.readFile(continueProposal, 'utf-8');
+      expect(proposalContent).toContain('---');
+      expect(proposalContent).toContain('name: openspec-proposal');
+      expect(proposalContent).toContain('invokable: true');
+      expect(proposalContent).toContain('<!-- OPENSPEC:START -->');
+
+      const applyContent = await fs.readFile(continueApply, 'utf-8');
+      expect(applyContent).toContain('---');
+      expect(applyContent).toContain('name: openspec-apply');
+      expect(applyContent).toContain('description: Implement an approved OpenSpec change and keep tasks in sync.');
+      expect(applyContent).toContain('invokable: true');
+      expect(applyContent).toContain('Work through tasks sequentially');
+
+      const archiveContent = await fs.readFile(continueArchive, 'utf-8');
+      expect(archiveContent).toContain('---');
+      expect(archiveContent).toContain('name: openspec-archive');
+      expect(archiveContent).toContain('description: Archive a deployed OpenSpec change and update specs.');
+      expect(archiveContent).toContain('invokable: true');
+      expect(archiveContent).toContain('openspec archive <id> --yes');
+    });
+
+    it('should mark Continue as already configured during extend mode', async () => {
+      queueSelections('continue', DONE, 'continue', DONE);
+      await initCommand.execute(testDir);
+      await initCommand.execute(testDir);
+
+      const secondRunArgs = mockPrompt.mock.calls[1][0];
+      const continueChoice = secondRunArgs.choices.find(
+        (choice: any) => choice.value === 'continue'
+      );
+      expect(continueChoice.configured).toBe(true);
+    });
+
     it('should create CODEBUDDY.md when CodeBuddy is selected', async () => {
       queueSelections('codebuddy', DONE);
 

test/core/update.test.ts

@@ -368,6 +368,80 @@ Old body
     consoleSpy.mockRestore();
   });
 
+  it('should refresh existing Continue prompt files', async () => {
+    const continuePath = path.join(
+      testDir,
+      '.continue/prompts/openspec-apply.prompt'
+    );
+    await fs.mkdir(path.dirname(continuePath), { recursive: true });
+    const initialContent = `---
+name: openspec-apply
+description: Old description
+invokable: true
+---
+<!-- OPENSPEC:START -->
+Old body
+<!-- OPENSPEC:END -->`;
+    await fs.writeFile(continuePath, initialContent);
+
+    const consoleSpy = vi.spyOn(console, 'log');
+
+    await updateCommand.execute(testDir);
+
+    const updated = await fs.readFile(continuePath, 'utf-8');
+    expect(updated).toContain('name: openspec-apply');
+    expect(updated).toContain('invokable: true');
+    expect(updated).toContain('Work through tasks sequentially');
+    expect(updated).not.toContain('Old body');
+
+    const [logMessage] = consoleSpy.mock.calls[0];
+    expect(logMessage).toContain(
+      'Updated OpenSpec instructions (openspec/AGENTS.md'
+    );
+    expect(logMessage).toContain('AGENTS.md (created)');
+    expect(logMessage).toContain(
+      'Updated slash commands: .continue/prompts/openspec-apply.prompt'
+    );
+
+    consoleSpy.mockRestore();
+  });
+
+  it('should not create missing Continue prompt files on update', async () => {
+    const continueApply = path.join(
+      testDir,
+      '.continue/prompts/openspec-apply.prompt'
+    );
+
+    // Only create apply; leave proposal and archive missing
+    await fs.mkdir(path.dirname(continueApply), { recursive: true });
+    await fs.writeFile(
+      continueApply,
+      `---
+name: openspec-apply
+description: Old description
+invokable: true
+---
+<!-- OPENSPEC:START -->
+Old body
+<!-- OPENSPEC:END -->`
+    );
+
+    await updateCommand.execute(testDir);
+
+    const continueProposal = path.join(
+      testDir,
+      '.continue/prompts/openspec-proposal.prompt'
+    );
+    const continueArchive = path.join(
+      testDir,
+      '.continue/prompts/openspec-archive.prompt'
+    );
+
+    // Confirm they weren't created by update
+    await expect(FileSystemUtils.fileExists(continueProposal)).resolves.toBe(false);
+    await expect(FileSystemUtils.fileExists(continueArchive)).resolves.toBe(false);
+  });
+
   it('should refresh existing OpenCode slash command files', async () => {
     const openCodePath = path.join(
       testDir,