diff --git a/decisions/0004-dependabot-unification.md b/decisions/0004-dependabot-unification.md
index 83459ce3b..7e6ee1ba7 100644
--- a/decisions/0004-dependabot-unification.md
+++ b/decisions/0004-dependabot-unification.md
@@ -2,7 +2,7 @@
 
 - **Status:** ACCEPTED
 - **Date:** 2026-05-20
-- **Deciders:** ss-o, Gemini CLI
+- **Deciders:** ss-o
 - **Supersedes:** None
 - **Superseded by:** `decisions/0012-hybrid-dependency-management.md`
 
diff --git a/decisions/0005-workflow-naming-conventions.md b/decisions/0005-workflow-naming-conventions.md
index e3b3d9b32..44c64c159 100644
--- a/decisions/0005-workflow-naming-conventions.md
+++ b/decisions/0005-workflow-naming-conventions.md
@@ -2,7 +2,7 @@
 
 - **Status:** ACCEPTED
 - **Date:** 2026-05-21
-- **Deciders:** ss-o, Claude Code
+- **Deciders:** ss-o
 - **Supersedes:** None
 - **Superseded by:** None
 
diff --git a/decisions/0006-wiki-content-root-boundaries.md b/decisions/0006-wiki-content-root-boundaries.md
index 68fa75508..249e24a26 100644
--- a/decisions/0006-wiki-content-root-boundaries.md
+++ b/decisions/0006-wiki-content-root-boundaries.md
@@ -2,7 +2,7 @@
 
 - **Status:** ACCEPTED
 - **Date:** 2026-05-29
-- **Deciders:** ss-o, Claude Code
+- **Deciders:** ss-o
 - **Supersedes:** None
 - **Superseded by:** None
 
@@ -20,7 +20,7 @@ The three content roots have fixed, non-overlapping scopes:
 2. `community/` holds **Z-Shell ecosystem community content only** — contributing, the Zsh handbook/plugin standard, ZUnit.
 3. `ecosystem/` holds the third-party catalog: annexes, packages, plugins.
 
-Maintainer, operational, and infrastructure runbooks do not belong on the public wiki at all. They live in `z-shell/.github/runbooks/`, which is the established home for operational documentation. Feature *implementation* (Edge Functions, migrations, scripts) still lives in the owning repository.
+Maintainer, operational, and infrastructure runbooks do not belong on the public wiki at all. They live in `z-shell/.github/runbooks/`, which is the established home for operational documentation. Feature _implementation_ (Edge Functions, migrations, scripts) still lives in the owning repository.
 
 These boundaries are recorded in the wiki `AGENTS.md` (with `CLAUDE.md` as a symlink to it) and the wiki authoring instructions (`docs-authoring.instructions.md`, `agent-docusaurus-writer.instructions.md`).
 
diff --git a/decisions/0007-release-publication-flow.md b/decisions/0007-release-publication-flow.md
index bfdf6140b..125870cfa 100644
--- a/decisions/0007-release-publication-flow.md
+++ b/decisions/0007-release-publication-flow.md
@@ -2,7 +2,7 @@
 
 - **Status:** ACCEPTED
 - **Date:** 2026-05-26
-- **Deciders:** ss-o, Claude Code
+- **Deciders:** ss-o
 - **Supersedes:** None
 - **Superseded by:** None
 
diff --git a/decisions/README.md b/decisions/README.md
index 6bc8bf0f1..db114d3ec 100644
--- a/decisions/README.md
+++ b/decisions/README.md
@@ -9,26 +9,26 @@ Check: python3 scripts/decision-records.py --check
 Durable organization decisions. Draft new records with `runbooks/adr.md`; only
 a maintainer moves a record from `PROPOSED` to `ACCEPTED`.
 
-| ADR                                                     | Title                                                          | Status   | Date       | Deciders          |
-| ------------------------------------------------------- | -------------------------------------------------------------- | -------- | ---------- | ----------------- |
-| [0001](0001-meta-repo-and-agents-md.md)                 | Adopt a meta-repo pattern centered on `AGENTS.md`              | ACCEPTED | 2026-05-29 | ss-o              |
-| [0002](0002-zi-as-canonical-plugin-manager.md)          | `zi` is the canonical plugin manager for the z-shell ecosystem | ACCEPTED | 2026-05-29 | ss-o              |
-| [0003](0003-conventional-commits.md)                    | Adopt Conventional Commits across z-shell repositories         | ACCEPTED | 2026-05-29 | ss-o              |
-| [0004](0004-dependabot-unification.md)                  | Standardize on Dependabot for Dependency Management            | ACCEPTED | 2026-05-20 | ss-o, Gemini CLI  |
-| [0005](0005-workflow-naming-conventions.md)             | No Emojis in Workflow and Job Name Fields                      | ACCEPTED | 2026-05-21 | ss-o, Claude Code |
-| [0006](0006-wiki-content-root-boundaries.md)            | Wiki Content-Root Boundaries                                   | ACCEPTED | 2026-05-29 | ss-o, Claude Code |
-| [0007](0007-release-publication-flow.md)                | Release and Publication Flow                                   | ACCEPTED | 2026-05-26 | ss-o, Claude Code |
-| [0008](0008-branching-model.md)                         | Branching Model                                                | ACCEPTED | 2026-07-25 | ss-o              |
-| [0009](0009-testing-ci-strategy.md)                     | Testing and CI Strategy                                        | ACCEPTED | 2026-07-25 | ss-o              |
-| [0010](0010-security-incident-response.md)              | Security Incident Response                                     | PROPOSED | 2026-05-29 | TBD               |
-| [0011](0011-zsh-lint-semantic-analyzer-architecture.md) | zsh-lint Conditional Semantic Analysis Pipeline                | ACCEPTED | 2026-07-25 | ss-o              |
-| [0012](0012-hybrid-dependency-management.md)            | Split Dependency Updates Between Renovate and Dependabot       | ACCEPTED | 2026-06-21 | ss-o              |
-| [0013](0013-repository-settings-baseline.md)            | Repository Settings Baseline by Class                          | ACCEPTED | 2026-07-25 | ss-o              |
-| [0014](0014-portable-agent-instruction-architecture.md) | Adopt portable agent-instruction delivery                      | ACCEPTED | 2026-07-23 | ss-o              |
-| [0015](0015-zsh-scripting-standard.md)                  | Adopt an organization-wide Zsh scripting standard              | ACCEPTED | 2026-08-27 | ss-o              |
-| [0016](0016-promotion-trigger-criteria.md)              | Next-to-Main Promotion Trigger Criteria                        | ACCEPTED | 2026-08-16 | ss-o              |
-| [0017](0017-licensing-standard-by-provenance.md)        | Licensing Standard by Provenance and Consumption               | ACCEPTED | 2026-08-18 | ss-o              |
-| [0018](0018-portable-worktree-management.md)            | Adopt Portable Worktree Management                             | ACCEPTED | 2026-08-27 | ss-o              |
-| [0019](0019-trunk-on-main-default.md)                   | Trunk-on-Main Default with a Zi Integration Exception          | ACCEPTED | 2026-08-28 | ss-o              |
-| [0020](0020-adopt-zsh-plugin-standard-2.md)             | Adopt Zsh Plugin Standard 2 as a Clean Portable Contract       | ACCEPTED | 2026-08-28 | ss-o              |
-| [0021](0021-derive-chroma-knowledge-at-runtime.md)      | Derive Chroma Command Knowledge at Runtime                     | ACCEPTED | 2026-08-29 | ss-o              |
+| ADR                                                     | Title                                                          | Status   | Date       | Deciders |
+| ------------------------------------------------------- | -------------------------------------------------------------- | -------- | ---------- | -------- |
+| [0001](0001-meta-repo-and-agents-md.md)                 | Adopt a meta-repo pattern centered on `AGENTS.md`              | ACCEPTED | 2026-05-29 | ss-o     |
+| [0002](0002-zi-as-canonical-plugin-manager.md)          | `zi` is the canonical plugin manager for the z-shell ecosystem | ACCEPTED | 2026-05-29 | ss-o     |
+| [0003](0003-conventional-commits.md)                    | Adopt Conventional Commits across z-shell repositories         | ACCEPTED | 2026-05-29 | ss-o     |
+| [0004](0004-dependabot-unification.md)                  | Standardize on Dependabot for Dependency Management            | ACCEPTED | 2026-05-20 | ss-o     |
+| [0005](0005-workflow-naming-conventions.md)             | No Emojis in Workflow and Job Name Fields                      | ACCEPTED | 2026-05-21 | ss-o     |
+| [0006](0006-wiki-content-root-boundaries.md)            | Wiki Content-Root Boundaries                                   | ACCEPTED | 2026-05-29 | ss-o     |
+| [0007](0007-release-publication-flow.md)                | Release and Publication Flow                                   | ACCEPTED | 2026-05-26 | ss-o     |
+| [0008](0008-branching-model.md)                         | Branching Model                                                | ACCEPTED | 2026-07-25 | ss-o     |
+| [0009](0009-testing-ci-strategy.md)                     | Testing and CI Strategy                                        | ACCEPTED | 2026-07-25 | ss-o     |
+| [0010](0010-security-incident-response.md)              | Security Incident Response                                     | PROPOSED | 2026-05-29 | TBD      |
+| [0011](0011-zsh-lint-semantic-analyzer-architecture.md) | zsh-lint Conditional Semantic Analysis Pipeline                | ACCEPTED | 2026-07-25 | ss-o     |
+| [0012](0012-hybrid-dependency-management.md)            | Split Dependency Updates Between Renovate and Dependabot       | ACCEPTED | 2026-06-21 | ss-o     |
+| [0013](0013-repository-settings-baseline.md)            | Repository Settings Baseline by Class                          | ACCEPTED | 2026-07-25 | ss-o     |
+| [0014](0014-portable-agent-instruction-architecture.md) | Adopt portable agent-instruction delivery                      | ACCEPTED | 2026-07-23 | ss-o     |
+| [0015](0015-zsh-scripting-standard.md)                  | Adopt an organization-wide Zsh scripting standard              | ACCEPTED | 2026-08-27 | ss-o     |
+| [0016](0016-promotion-trigger-criteria.md)              | Next-to-Main Promotion Trigger Criteria                        | ACCEPTED | 2026-08-16 | ss-o     |
+| [0017](0017-licensing-standard-by-provenance.md)        | Licensing Standard by Provenance and Consumption               | ACCEPTED | 2026-08-18 | ss-o     |
+| [0018](0018-portable-worktree-management.md)            | Adopt Portable Worktree Management                             | ACCEPTED | 2026-08-27 | ss-o     |
+| [0019](0019-trunk-on-main-default.md)                   | Trunk-on-Main Default with a Zi Integration Exception          | ACCEPTED | 2026-08-28 | ss-o     |
+| [0020](0020-adopt-zsh-plugin-standard-2.md)             | Adopt Zsh Plugin Standard 2 as a Clean Portable Contract       | ACCEPTED | 2026-08-28 | ss-o     |
+| [0021](0021-derive-chroma-knowledge-at-runtime.md)      | Derive Chroma Command Knowledge at Runtime                     | ACCEPTED | 2026-08-29 | ss-o     |
diff --git a/scripts/decision-records.py b/scripts/decision-records.py
index 3227bf7ce..772c2b93b 100644
--- a/scripts/decision-records.py
+++ b/scripts/decision-records.py
@@ -48,6 +48,17 @@ class of drift the organization asks to catch with an executable check rather
 UNRESOLVED_DECIDERS = ("TBD", "None", "")
 DATE_PATTERN = re.compile(r"^\d{4}-\d{2}-\d{2}$")
 
+# A decision record names the humans who hold decision authority. Organization
+# policy bans crediting a bot or AI agent as a co-author, and runbooks/adr.md
+# reserves acceptance for a maintainer, so an automation identity can never be
+# a decider. The commit-msg hook enforces the same rule for commit trailers;
+# this is the decision-record half of it.
+AGENT_DECIDER_PATTERN = re.compile(
+    r"\[bot\]|\b(?:claude(?:\s+code)?|copilot|gemini(?:\s+cli)?|codex|cursor"
+    r"|devin|openai|anthropic|chatgpt|gpt-\d)\b",
+    re.IGNORECASE,
+)
+
 INDEX_HEADER = """<!--
 GENERATED FILE. DO NOT EDIT DIRECTLY.
 Regenerate: python3 scripts/decision-records.py
@@ -197,6 +208,18 @@ def _validate_record(
             )
         )
 
+    agent_match = AGENT_DECIDER_PATTERN.search(record.deciders)
+    if agent_match is not None:
+        errors.append(
+            error(
+                path,
+                f"Deciders credits the automation identity "
+                f"{agent_match.group(0)!r}",
+                "list only the humans who hold decision authority; an agent "
+                "may draft a record but never decides it (see runbooks/adr.md)",
+            )
+        )
+
     if not DATE_PATTERN.match(record.date):
         errors.append(
             error(
diff --git a/scripts/test_decision_records.py b/scripts/test_decision_records.py
index c9c3d4461..5719b80b9 100644
--- a/scripts/test_decision_records.py
+++ b/scripts/test_decision_records.py
@@ -87,6 +87,28 @@ def test_allows_proposed_record_without_deciders(self) -> None:
         self.write_record("0001-proposed.md", text)
         self.assertEqual(self.errors(), [])
 
+    def test_rejects_ai_agent_decider(self) -> None:
+        for identity in (
+            "Claude Code",
+            "Gemini CLI",
+            "Copilot",
+            "Codex",
+            "renovate[bot]",
+        ):
+            with self.subTest(identity=identity):
+                self.write_record(
+                    "0001-agent-decider.md",
+                    VALID_RECORD.replace("ss-o", f"ss-o, {identity}"),
+                )
+                errors = self.errors()
+                self.assertTrue(any("automation identity" in e for e in errors), errors)
+
+    def test_allows_human_deciders(self) -> None:
+        self.write_record(
+            "0001-humans.md", VALID_RECORD.replace("ss-o", "ss-o, wicoop")
+        )
+        self.assertEqual(self.errors(), [])
+
     def test_rejects_unknown_status(self) -> None:
         self.write_record("0001-unknown.md", VALID_RECORD.replace("ACCEPTED", "MAYBE"))
         errors = self.errors()
diff --git a/scripts/test_validate_zsh_standard_policy.py b/scripts/test_validate_zsh_standard_policy.py
index b7329a246..9f670caf1 100644
--- a/scripts/test_validate_zsh_standard_policy.py
+++ b/scripts/test_validate_zsh_standard_policy.py
@@ -3525,12 +3525,8 @@ def test_rendered_plugin_template_restores_lifecycle_state(self) -> None:
                 [[ $0 == "$caller_zero" ]] || exit 34
                 """)
             direct_source = str(entry_path)
-            direct_relative_source = str(
-                entry_path.relative_to(temporary_directory)
-            )
-            manager_source = str(
-                plugin_root / "manager [literal]*? plugin.plugin.zsh"
-            )
+            direct_relative_source = str(entry_path.relative_to(temporary_directory))
+            manager_source = str(plugin_root / "manager [literal]*? plugin.plugin.zsh")
             manager_raw_source = str(
                 plugin_root
                 / "discarded [literal]*? segment"