diff --git a/.changeset/sturdy-jays-cheer.md b/.changeset/sturdy-jays-cheer.md
new file mode 100644
index 000000000..262ebebe4
--- /dev/null
+++ b/.changeset/sturdy-jays-cheer.md
@@ -0,0 +1,5 @@
+---
+type: Fixed
+pr: 4501
+---
+**`hooks.commit_types` and `hooks.community` are now settable via `config-set`** — both keys are consumed by shipped hooks (`hooks/gsd-validate-commit.sh`), and `hooks.commit_types` is documented in `docs/COMMANDS.md`, but neither was registered in `config-schema.manifest.json`'s `validKeys`, so `config-set` rejected them with "Unknown config key" — the only way to configure either was hand-editing `.planning/config.json`. (#4443)
diff --git a/gsd-core/bin/shared/config-schema.manifest.json b/gsd-core/bin/shared/config-schema.manifest.json
index 0212ba304..ad08ba1e7 100644
--- a/gsd-core/bin/shared/config-schema.manifest.json
+++ b/gsd-core/bin/shared/config-schema.manifest.json
@@ -77,6 +77,8 @@
     "workflow.inline_plan_threshold",
     "hooks.context_warnings",
     "hooks.workflow_guard",
+    "hooks.commit_types",
+    "hooks.community",
     "workflow.context_coverage_gate",
     "statusline.show_last_command",
     "statusline.context_position",
diff --git a/tests/config-schema.property.test.cjs b/tests/config-schema.property.test.cjs
index 8d02ccdf1..f9081f76d 100644
--- a/tests/config-schema.property.test.cjs
+++ b/tests/config-schema.property.test.cjs
@@ -24,6 +24,7 @@ const os = require('node:os');
 const path = require('node:path');
 const fc = require('./helpers/fast-check-setup.cjs');
 const { cleanup } = require('./helpers.cjs');
+const { PROBE_TIMEOUT_MS } = require('./helpers/timeouts.cjs');
 
 const {
   isValidConfigKey,
@@ -150,6 +151,22 @@ describe('config-schema: isValidConfigKey properties', () => {
     assert.equal(result, false, 'empty string must not be a valid config key');
   });
 
+  test('hooks.commit_types is a valid config key (#4443)', () => {
+    assert.equal(
+      isValidConfigKey('hooks.commit_types'),
+      true,
+      'hooks.commit_types is a documented, hook-consumed key (see the CLI reference) and must be settable via config-set'
+    );
+  });
+
+  test('hooks.community is a valid config key (sibling of #4443)', () => {
+    assert.equal(
+      isValidConfigKey('hooks.community'),
+      true,
+      'hooks.community is the gsd-validate-commit.sh opt-in gate and must be settable via config-set'
+    );
+  });
+
   // Boundary: null/undefined/number return false (not throw, not true)
   test('null, undefined, number inputs return false', () => {
     assert.equal(isValidConfigKey(null), false);
@@ -1232,3 +1249,47 @@ describe('feat-3210: workflow and config contracts', () => {
 });
   });
 }
+
+describe('config-set: hooks.commit_types end-to-end (#4443)', () => {
+  const { spawnSync } = require('node:child_process');
+
+  test('config-set hooks.commit_types accepts a JSON array and does not report Unknown config key', (t) => {
+    const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'gsd-4443-'));
+    t.after(() => cleanup(dir));
+    fs.mkdirSync(path.join(dir, '.planning'), { recursive: true });
+    fs.writeFileSync(path.join(dir, '.planning', 'config.json'), '{}\n');
+
+    const gsdTools = path.join(__dirname, '..', 'gsd-core', 'bin', 'gsd-tools.cjs');
+    const result = spawnSync(
+      process.execPath,
+      [gsdTools, 'config-set', 'hooks.commit_types', '["enhance"]'],
+      { cwd: dir, encoding: 'utf8', timeout: PROBE_TIMEOUT_MS },
+    );
+
+    assert.equal(result.status, 0, `config-set failed: ${result.stderr || result.stdout}`);
+    assert.doesNotMatch(result.stdout + result.stderr, /Unknown config key/);
+
+    const written = JSON.parse(fs.readFileSync(path.join(dir, '.planning', 'config.json'), 'utf8'));
+    assert.deepEqual(written.hooks.commit_types, ['enhance']);
+  });
+
+  test('config-set hooks.community accepts a boolean and does not report Unknown config key', (t) => {
+    const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'gsd-4443-community-'));
+    t.after(() => cleanup(dir));
+    fs.mkdirSync(path.join(dir, '.planning'), { recursive: true });
+    fs.writeFileSync(path.join(dir, '.planning', 'config.json'), '{}\n');
+
+    const gsdTools = path.join(__dirname, '..', 'gsd-core', 'bin', 'gsd-tools.cjs');
+    const result = spawnSync(
+      process.execPath,
+      [gsdTools, 'config-set', 'hooks.community', 'true'],
+      { cwd: dir, encoding: 'utf8', timeout: PROBE_TIMEOUT_MS },
+    );
+
+    assert.equal(result.status, 0, `config-set failed: ${result.stderr || result.stdout}`);
+    assert.doesNotMatch(result.stdout + result.stderr, /Unknown config key/);
+
+    const written = JSON.parse(fs.readFileSync(path.join(dir, '.planning', 'config.json'), 'utf8'));
+    assert.equal(written.hooks.community, true);
+  });
+});