diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
index bf91b0c0b..bfee7fdf0 100644
--- a/ARCHITECTURE.md
+++ b/ARCHITECTURE.md
@@ -338,7 +338,7 @@ Templates contain the workflows, tips, and examples that require human judgment.
 | `{{DESIGN_METHODOLOGY}}` | `gen-skill-docs.ts` | Shared design audit methodology for /plan-design-review and /design-review |
 | `{{REVIEW_DASHBOARD}}` | `gen-skill-docs.ts` | Review Readiness Dashboard for /ship pre-flight |
 | `{{TEST_BOOTSTRAP}}` | `gen-skill-docs.ts` | Test framework detection, bootstrap, CI/CD setup for /qa, /ship, /design-review |
-| `{{CODEX_PLAN_REVIEW}}` | `gen-skill-docs.ts` | Optional cross-model plan review (Codex or Claude subagent fallback) for /plan-ceo-review and /plan-eng-review |
+| `{{CODEX_PLAN_REVIEW}}` | `resolvers/review.ts` | Optional outside plan review for /plan-ceo-review and /plan-eng-review: Claude Code on Codex, Codex on other supported harnesses, with the caller's native subagent fallback |
 | `{{DESIGN_SETUP}}` | `resolvers/design.ts` | Discovery pattern for `$D` design binary, mirrors `{{BROWSE_SETUP}}` |
 | `{{DESIGN_DETECTOR}}` | `resolvers/design.ts` | Probe block + sentinel reading for the user-installed impeccable engine (`bin/gstack-design-detect.ts`); `:phase0` renders design-review's mechanical scan, `:gate` design-html's bounded slop gate |
 | `{{DESIGN_MD_CHECK}}` | `resolvers/design.ts` | Open DESIGN.md format check through `bin/gstack-design-md.ts`, with the one-time conversion offer persisted in the file; `:calibrate` renders the tokens-as-calibration form for /design-review |
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 64851c6ee..50c854c7f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -438,7 +438,7 @@ Each host config (`hosts/*.ts`) controls:
 | Paths | `~/.claude/skills/gstack` vs `$GSTACK_ROOT` |
 | Tool names | "use the Bash tool" vs same (Factory rewrites to "run this command") |
 | Hook skills | `hooks:` frontmatter vs inline safety advisory prose |
-| Suppressed sections | None vs Codex self-invocation sections stripped |
+| Suppressed sections | GBrain blocks vs GBrain blocks and Review Army; Codex retains outside-review sections routed to Claude Code |
 | Model overlay | `claude` vs `gpt` (per-host `defaultModel`; `--model` or, at setup time, the Codex `config.toml` model overrides) |
 
 See `scripts/host-config.ts` for the full `HostConfig` interface.
diff --git a/docs/ADDING_A_HOST.md b/docs/ADDING_A_HOST.md
index d699816df..b9541fa08 100644
--- a/docs/ADDING_A_HOST.md
+++ b/docs/ADDING_A_HOST.md
@@ -64,7 +64,7 @@ That expands to the full `HostConfig` with these defaults:
 - `globalRoot` / `localSkillRoot`: `.myhost/skills/gstack`, `hostSubdir`: `.myhost`
 - `usesEnvVars: true` (false only for Claude, which uses literal `~` paths)
 - `frontmatter`: allowlist keeping `name` + `description`, no description limit
-- `generation`: no metadata file, `skipSkills: ['codex']` (codex skill is Claude-only)
+- `generation`: no metadata file, `skipSkills: []` (both outside-review skills are enabled; Claude and Codex explicitly omit their own wrapper)
 - `pathRewrites`: the standard trio derived from the resolved paths
   (`~/.claude/skills/gstack` → `~/{globalRoot}`, `.claude/skills/gstack` →
   `{localSkillRoot}`, `.claude/skills` → `{hostSubdir}/skills`)
@@ -86,8 +86,9 @@ Override any field by passing it to `defineHost()`. Two path-rewrite options:
 The two are mutually exclusive (the factory throws if you pass both).
 
 Shared constants exported from `define-host.ts` for spread-composition:
-`CROSS_MODEL_RESOLVERS` (the five Codex-invoking resolvers suppressed on
-hosts that can't invoke other models), `GBRAIN_RESOLVERS` (the default
+`CROSS_MODEL_RESOLVERS` (outside-provider review resolvers plus Review Army,
+suppressed on hosts that opt out; Codex keeps outside reviews and suppresses
+Review Army), `GBRAIN_RESOLVERS` (the default
 suppression pair), and `EXEC_STYLE_TOOL_REWRITES` (the OpenClaw-style
 lowercase-tool rewrites shared by openclaw and gbrain).
 
@@ -142,7 +143,7 @@ bun test test/host-config.test.ts
 
 The parameterized smoke tests automatically pick up the new host. Zero test
 code to write. They verify: output exists, no path leakage, valid frontmatter,
-freshness check passes, codex skill excluded.
+freshness check passes, and outside-review skills match each host's exclusions.
 
 ### 6. Update README.md