Grzanka777 · Grzanka777 · Aug 19, 2026 · Aug 19, 2026
diff --git a/agent-pack/CAPABILITY_MATRIX.md b/agent-pack/CAPABILITY_MATRIX.md
@@ -14,13 +14,13 @@
 
 | Capability | OpenCode | Codex CLI |
 |---|---|---|
-| **Agents / roles** | SUPPORTED — `builder` (generic implementation), `arch-data-engineer` (specialist, scoped permissions), `reviewer` (read-only, restricted permissions), `planner` (read-only planning and routing), `mechanical` (deterministic low-judgment operations) | NOT YET ASSESSED |
-| **Skills / contracts** | SUPPORTED — 5 skills: neuralengine, repository-review, python-project-validation, arch-linux-diagnostics, verification | NOT YET ASSESSED |
-| **Global instructions** | SUPPORTED — `neuralengine-usage.md` loaded via `opencode.json` instructions array | NOT YET ASSESSED |
-| **Permissions** | SUPPORTED — Agent-level permission blocks with allow/deny/ask for edit, bash, task, tools. Reviewer enforces read-only. | NOT YET ASSESSED |
-| **Shell execution** | SUPPORTED — Scoped bash allowlist for `arch-data-engineer` (read-only diagnostics and validation; commit, push, destructive Git/filesystem/partitioning commands, and Ruff auto-fix denied). Restricted allowlist for `reviewer`. | NOT YET ASSESSED |
-| **Repository instructions** | SUPPORTED — `AGENTS.md`, `CODEX.md`, `VISION.md`, `CONTEXT.md`, `pyproject.toml` awareness built into agent rules | NOT YET ASSESSED |
-| **NeuralEngine CLI** | SUPPORTED — `neural status` and `neural search` available and used in all reviews | NOT YET ASSESSED |
+| **Agents / roles** | SUPPORTED — `builder` (generic implementation), `arch-data-engineer` (specialist, scoped permissions), `reviewer` (read-only, restricted permissions), `planner` (read-only planning and routing), `mechanical` (deterministic low-judgment operations) | NOT YET ASSESSED — outside this NeuralEngine-only slice |
+| **Skills / contracts** | SUPPORTED — 5 skills: neuralengine, repository-review, python-project-validation, arch-linux-diagnostics, verification | SUPPORTED WITH LIMITATIONS — NeuralEngine contract projection only; other contracts remain unmapped |
+| **Global instructions** | SUPPORTED — `neuralengine-usage.md` loaded via `opencode.json` instructions array | SUPPORTED WITH LIMITATIONS — short `AGENTS.md` pointer; Codex CLI runtime discovery not exercised here |
+| **Permissions** | SUPPORTED — Agent-level permission blocks with allow/deny/ask for edit, bash, task, tools. Reviewer enforces read-only. | SUPPORTED WITH LIMITATIONS — Codex host sandbox/approval controls remain authoritative; no adapter write authority |
+| **Shell execution** | SUPPORTED — Scoped bash allowlist for `arch-data-engineer` (read-only diagnostics and validation; commit, push, destructive Git/filesystem/partitioning commands, and Ruff auto-fix denied). Restricted allowlist for `reviewer`. | SUPPORTED WITH LIMITATIONS — `neural` commands are ordinary host shell commands; executable/PATH/runtime behavior not verified |
+| **Repository instructions** | SUPPORTED — `AGENTS.md`, `CODEX.md`, `VISION.md`, `CONTEXT.md`, `pyproject.toml` awareness built into agent rules | SUPPORTED WITH LIMITATIONS — Codex CLI native `AGENTS.md` pointer for substantive/consequential work |
+| **NeuralEngine CLI** | SUPPORTED — `neural status` and `neural search` available and used in all reviews | SUPPORTED WITH LIMITATIONS — projection preserves `neural status`, targeted retrieval, and read-only boundaries; target installation not verified |
 | **Review** | SUPPORTED — `repository-review` skill, reviewer agent with read-only permissions, formal review format with verdict/checkpoint/validation/scope/findings | NOT YET ASSESSED |
 | **Verification** | SUPPORTED — reviewer agent with `verification` skill and enforced read-only command permissions (8 additional allow patterns: find, test, wc, sha256sum, diff, cmp, grep, sed). Quick Verification runs without permission prompts. | NOT YET ASSESSED |
 | **Certification** | SUPPORTED — Certification Report template, 3 verdicts (CERTIFIED/CERTIFIED WITH NOTES/NOT CERTIFIED), collision-safe naming, `.agent-work/certifications/` convention | NOT YET ASSESSED |
@@ -30,9 +30,10 @@
 
 ## Codex CLI assessment notes
 
-All Codex capabilities are `NOT YET ASSESSED`. The Codex Platform Assessment
-(task: `.agent-work/prompts/assess-codex-platform-v1.0.md`) is the designated
-authority to evaluate Codex against this matrix.
+This implementation assesses only the bounded Codex CLI NeuralEngine slice.
+The remaining Codex capabilities stay `NOT YET ASSESSED`. The provider-native
+assessment at `.agent-work/reviews/review-provider-native-cross-agent-neuralengine-adapters.md`
+is the authority for the host findings used by this slice.
 
 The following rules apply to the Codex assessment:
 
@@ -47,6 +48,20 @@ The following rules apply to the Codex assessment:
    the v1.0 Adapter API defined in
    [DECISIONS/architecture-freeze-v1.0.md](../DECISIONS/architecture-freeze-v1.0.md).
 
+## Codex CLI evidence sources
+
+The bounded Codex CLI NeuralEngine slice is derived from:
+
+- `platforms/codex/AGENTS.md` — minimal project-instruction pointer.
+- `platforms/codex/skills/neuralengine/SKILL.md` — controlled semantic
+  projection of `shared/neuralengine.md` with Codex-required front matter.
+- `MANIFEST.md` — shared-to-Codex mapping and controlled-copy boundary.
+- `tests/test_agent_rollout.py` — focused front-matter, pointer, and semantic
+  drift checks.
+
+These files do not claim full Codex Adapter API support, Codex Desktop support,
+or provider runtime installation.
+
 ## OpenCode evidence sources
 
 OpenCode capabilities are derived from:

diff --git a/agent-pack/MANIFEST.md b/agent-pack/MANIFEST.md
@@ -2,14 +2,14 @@
 
 ## Shared-to-platform mapping
 
-| Authoritative source | OpenCode target |
-|---|---|
-| `shared/neuralengine.md` | global instruction (`neuralengine-usage.md`) and NeuralEngine skill |
-| `shared/repository-review.md` | repository-review skill |
-| `shared/python-validation.md` | python-project-validation skill |
-| `shared/arch-linux.md` | arch-linux-diagnostics skill |
-| `shared/verification.md` | verification skill (Quick, Standard, and Certification implemented) |
-| `shared/task-execution-policy.md` | no platform copy (vocabulary contract, deferred consumption) |
+| Authoritative source | OpenCode target | Codex CLI target |
+|---|---|---|
+| `shared/neuralengine.md` | global instruction (`neuralengine-usage.md`) and NeuralEngine skill | `platforms/codex/skills/neuralengine/SKILL.md` (controlled copy; install target is `.agents/skills/neuralengine/SKILL.md`) |
+| `shared/repository-review.md` | repository-review skill | not mapped in this slice |
+| `shared/python-validation.md` | python-project-validation skill | not mapped in this slice |
+| `shared/arch-linux.md` | arch-linux-diagnostics skill | not mapped in this slice |
+| `shared/verification.md` | verification skill (Quick, Standard, and Certification implemented) | not mapped in this slice |
+| `shared/task-execution-policy.md` | no platform copy (vocabulary contract, deferred consumption) | no platform copy (vocabulary contract, deferred consumption) |
 
 ## Platform-specific files (no shared equivalent)
 
@@ -19,6 +19,7 @@
 - `agents/reviewer.md`
 - `agents/planner.md`
 - `agents/mechanical.md`
+- `codex/AGENTS.md`
 
 These files are platform-specific configuration artifacts. They have no
 corresponding shared source in this pack.

diff --git a/agent-pack/README.md b/agent-pack/README.md
@@ -10,10 +10,11 @@ repository—not a separate product.
 ## Scope
 
 - Six authoritative shared workflow files (Verification Framework added in v0.2.0, Task Execution Policy added in v0.4.0).
-- One platform variant (OpenCode) derived from the user's current, working
-  OpenCode configuration.
-- Placeholder directories for future Codex, Claude Code, and Antigravity
-  platform variants.
+- One complete platform variant (OpenCode) derived from the user's current,
+  working OpenCode configuration.
+- One bounded Codex CLI NeuralEngine skill projection.
+- Placeholder directories for future Claude Code and Antigravity platform
+  variants.
 
 This pack does not modify NeuralEngine runtime behavior, Brain persistence,
 schemas, migrations, user data, or public APIs.
@@ -47,7 +48,7 @@ contract and introduces the generic builder agent:
 | Task Execution Policy foundation review | READY FOR INDEPENDENT REVIEW |
 | ACP independent review | PASS |
 | OpenCode | Supported |
-| Codex | Placeholder (not implemented) |
+| Codex CLI NeuralEngine slice | Supported with limitations (CLI only) |
 | Claude Code | Placeholder (not implemented) |
 | Antigravity | Placeholder (not implemented) |
 
@@ -211,6 +212,7 @@ Shared contracts:
 OpenCode platform implementation:
 
 - [platforms/opencode/](platforms/opencode/) — OpenCode adapter and skills.
+- [platforms/codex/](platforms/codex/) — Codex CLI NeuralEngine adapter slice.
 - [platforms/opencode/agents/planner.md](platforms/opencode/agents/planner.md) — Read-only planning and routing agent.
 - [platforms/opencode/agents/builder.md](platforms/opencode/agents/builder.md) — Generic builder agent (new in v0.4.0).
 - [platforms/opencode/agents/arch-data-engineer.md](platforms/opencode/agents/arch-data-engineer.md) — Specialist implementation agent.

diff --git a/agent-pack/platforms/codex/AGENTS.md b/agent-pack/platforms/codex/AGENTS.md
@@ -0,0 +1,7 @@
+# Codex CLI NeuralEngine pointer
+
+For substantive or consequential work, consider the repository
+`neuralengine` skill at `.agents/skills/neuralengine/SKILL.md`.
+
+The semantic authority is `agent-pack/shared/neuralengine.md`. This pointer
+does not duplicate or redefine that contract.
diff --git a/agent-pack/platforms/codex/README.md b/agent-pack/platforms/codex/README.md
@@ -1,9 +1,43 @@
-# Codex Platform
+# Codex CLI Platform
 
-**Status:** Not implemented as of Agent Pack v0.2.0.
+**Status:** NeuralEngine thin adapter implemented for Codex CLI only.
 
-**Intended future mapping:** Adapt the five shared contracts to Codex agent
-configuration format. Map OpenCode skills and agents to equivalent Codex
-constructs.
+This adapter is a controlled projection of
+`agent-pack/shared/neuralengine.md`. It does not implement Codex Desktop or
+any other provider, and it does not modify NeuralEngine runtime behavior,
+Brain persistence, schemas, APIs, or user-global Codex configuration.
 
-**Current version:** Not supported. This directory exists as a placeholder.
+## Adapter files
+
+- `AGENTS.md` — minimal project-instruction pointer; merge this pointer into a
+  target repository's project instructions without replacing unrelated rules.
+- `skills/neuralengine/SKILL.md` — Codex-compatible skill projection with only
+  the required `name` and `description` front matter.
+
+The skill body is a controlled copy of the shared contract. Drift validation
+requires the body after front matter removal to remain byte-equal to
+`agent-pack/shared/neuralengine.md`.
+
+## Manual installation mapping
+
+Installation is explicit and manual, consistent with the Agent Pack
+architecture:
+
+```text
+skills/neuralengine/SKILL.md
+→ <target-repository>/.agents/skills/neuralengine/SKILL.md
+```
+
+The `AGENTS.md` content is a pointer to merge into the target repository's
+project instructions. This package does not provide an installer, write to
+`~/.codex`, or claim Desktop support.
+
+## Limitations
+
+- Codex CLI is the only supported surface in this adapter.
+- Codex Desktop discovery parity is not established by this slice.
+- Availability of the `neural` executable, `PATH`, Brain access, and runtime
+  command behavior must be verified in the target environment.
+- Host permissions and approvals remain Codex controls; this adapter grants no
+  Brain-write, staging, commit, push, merge, tag, release, or publication
+  authority.