feat(framework): P3 — extract Constitution (L0) + gut AGENTS dispatcher (#575)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

packages/mosaic/src/commands/launch.ts

@@ -330,6 +330,11 @@ Mosaic hard gates OVERRIDE runtime-default caution for routine delivery operatio
 For required push/merge/issue-close/release actions, execute without routine confirmation prompts.
 `);
 
+  // CONSTITUTION.md (L0 — the non-negotiable law; lead with it). Tolerant of
+  // pre-constitution installs that have not been re-seeded yet.
+  const constitution = readOptional(join(MOSAIC_HOME, 'CONSTITUTION.md'));
+  if (constitution) parts.push(constitution);
+
   // AGENTS.md
   parts.push(readFileSync(join(MOSAIC_HOME, 'AGENTS.md'), 'utf-8'));
 

packages/mosaic/src/config/file-adapter.test.ts

@@ -35,6 +35,7 @@ function makeFixture(): { sourceDir: string; mosaicHome: string; defaultsDir: st
   mkdirSync(mosaicHome, { recursive: true });
 
   // Framework-contract defaults we expect the wizard to seed.
+  writeFileSync(join(defaultsDir, 'CONSTITUTION.md'), '# CONSTITUTION default\n');
   writeFileSync(join(defaultsDir, 'AGENTS.md'), '# AGENTS default\n');
   writeFileSync(join(defaultsDir, 'STANDARDS.md'), '# STANDARDS default\n');
   writeFileSync(join(defaultsDir, 'TOOLS.md'), '# TOOLS default\n');
@@ -62,7 +63,7 @@ describe('FileConfigAdapter.syncFramework — defaults seeding', () => {
     rmSync(join(fixture.sourceDir, '..'), { recursive: true, force: true });
   });
 
-  it('seeds the three framework-contract files on a fresh mosaic home', async () => {
+  it('seeds the four framework-contract files on a fresh mosaic home', async () => {
     const adapter = new FileConfigAdapter(fixture.mosaicHome, fixture.sourceDir);
 
     await adapter.syncFramework('fresh');

packages/mosaic/src/config/file-adapter.ts

@@ -13,7 +13,12 @@ import { join } from 'node:path';
  * This list must match the explicit seed loop in
  * packages/mosaic/framework/install.sh.
  */
-export const DEFAULT_SEED_FILES = ['AGENTS.md', 'STANDARDS.md', 'TOOLS.md'] as const;
+export const DEFAULT_SEED_FILES = [
+  'CONSTITUTION.md',
+  'AGENTS.md',
+  'STANDARDS.md',
+  'TOOLS.md',
+] as const;
 import type { ConfigService, ConfigSection, ResolvedConfig } from './config-service.js';
 import type { SoulConfig, UserConfig, ToolsConfig, InstallAction } from '../types.js';
 import { soulSchema, userSchema, toolsSchema } from './schemas.js';