diff --git a/config/extensions.lock.json b/config/extensions.lock.json
index 143ad72..d3a8d72 100644
--- a/config/extensions.lock.json
+++ b/config/extensions.lock.json
@@ -97,6 +97,15 @@
       "reason": "Current Container Tools extension; its README states it replaces the older Docker extension functionality.",
       "mode": "baseline"
     },
+    {
+      "id": "formulahendry.acp-client",
+      "version": "0.2.0",
+      "platform": "universal",
+      "vsix_url": "https://open-vsx.org/api/formulahendry/acp-client/0.2.0/file/formulahendry.acp-client-0.2.0.vsix",
+      "sha256_url": "https://open-vsx.org/api/formulahendry/acp-client/0.2.0/file/formulahendry.acp-client-0.2.0.sha256",
+      "reason": "Generic Agent Client Protocol client. Drives the local omp harness via `omp acp` (ACP wire version 1), giving the IDE a native agent panel without a custom extension. MIT, engines.vscode ^1.85.0, no extensionKind so it loads in the remote extension host where child_process exists.",
+      "mode": "baseline"
+    },
     {
       "id": "sourcegraph.cody-ai",
       "version": "1.155.0",
diff --git a/q5vault/index.md b/q5vault/index.md
index 54228ff..6bcbd2a 100644
--- a/q5vault/index.md
+++ b/q5vault/index.md
@@ -36,6 +36,7 @@ Browser IDE for user `loca`, reverse-proxied by Nginx, gated by Authelia one-fac
 | --- | --- | --- |
 | `Continue.continue` | 2.1.0 | open-source AI agent, chat, edit, autocomplete |
 | `Anthropic.claude-code` | 2.1.235 | first-party Claude Code IDE integration |
+| `formulahendry.acp-client` | 0.2.0 | ACP client; runs the local `omp` harness as a native agent panel |
 | `ms-python.python` | 2026.4.0 | Python language support |
 | `ms-python.debugpy` | 2026.6.0 | Python debugger, pinned explicitly |
 | `ms-toolsai.jupyter` | 2025.9.1 | notebooks in the browser IDE |
@@ -45,6 +46,7 @@ Browser IDE for user `loca`, reverse-proxied by Nginx, gated by Authelia one-fac
 - audit against the lock file: `./scripts/list-extension-versions.sh`
 - optional, enterprise-only: `sourcegraph.cody-ai` 1.155.0 via `./scripts/install-extensions.sh --include-optional`
 - AI models come from the host LiteLLM gateway (`127.0.0.1:52001`), not a cloud sign-in; use the `free` model — see [[operations/extensions]]
+- the `omp` harness is available as a native agent panel: activity bar → ACP Client → `ACP: New Conversation` → `Oh My Pi`, backed by `omp acp` over stdio — see [[operations/extensions]]
 - a fresh browser profile starts in Restricted Mode and hides every third-party extension until the folder is trusted — see [[operations/extensions]]
 - details: [[operations/extensions]]
 
diff --git a/q5vault/operations/extensions.md b/q5vault/operations/extensions.md
index 8d49a02..42b1433 100644
--- a/q5vault/operations/extensions.md
+++ b/q5vault/operations/extensions.md
@@ -7,18 +7,46 @@ reviewed: 2026-08-20
 
 # 🧩 Extension baseline
 
-## Pinned baseline (six entries)
+## Pinned baseline (seven entries)
 
 | id | version | platform | reason |
 |---|---|---|---|
 | `Continue.continue` | 2.1.0 | linux-x64 | Primary open-source AI agent/chat/edit/autocomplete extension. |
 | `Anthropic.claude-code` | 2.1.235 | linux-x64 | First-party Claude Code IDE integration. |
+| `formulahendry.acp-client` | 0.2.0 | universal | Generic Agent Client Protocol client; drives the local `omp` harness as a native agent panel. |
 | `ms-python.python` | 2026.4.0 | universal | Python language support expected in this environment. |
 | `ms-python.debugpy` | 2026.6.0 | linux-x64 | Explicit debugger dependency instead of relying on later bootstrap by the Python extension. |
 | `ms-toolsai.jupyter` | 2025.9.1 | universal | Notebook workflow support in the browser IDE. |
 | `ms-azuretools.vscode-containers` | 2.4.5 | universal | Current Container Tools extension; its README states it replaces the older Docker extension functionality. |
 
-All six come from `config/extensions.lock.json` (registry: `https://open-vsx.org`).
+All seven come from `config/extensions.lock.json` (registry: `https://open-vsx.org`).
+
+## OMP as a native agent panel (ACP)
+
+The `omp` harness is wired into the IDE over the Agent Client Protocol. No custom extension and no marketplace exception were needed: OMP already ships an ACP server and Open VSX already ships a generic ACP client.
+
+- agent side: `omp acp` runs Oh My Pi as an ACP server over stdio. Verified against the installed binary — `initialize` returns `protocolVersion 1` and `agentInfo {name: oh-my-pi, version: 17.4.0}`, and a full `session/new` + `session/prompt` turn streams `tool_call`, `plan`, `agent_message_chunk`, `usage_update`, `stopReason: end_turn`
+- client side: `formulahendry.acp-client` 0.2.0, MIT, `engines.vscode ^1.85.0`. It declares no `extensionKind`, so it loads in the remote extension host where Node and `child_process` exist — a requirement, since the client spawns the agent as a child process
+- protocol versions differ but interoperate: the client bundles ACP SDK `^0.21.1`, OMP pins `0.25.0`, both negotiate wire version 1
+- configuration lives in `data/user/User/settings.json`:
+
+```json
+"acp.agents": {
+  "Oh My Pi": { "command": "/home/loca/.local/bin/omp", "args": ["acp"], "env": {} }
+}
+```
+
+VS Code merges this object with the extension's own defaults, so the agent tree shows the shipped entries (Copilot, Claude Code, Gemini, Qwen and others, all of which would `npx`-fetch at runtime) plus `Oh My Pi`. Only `Oh My Pi` is a pinned local binary; treat the rest as unpinned and unsupported here.
+
+Usage: activity bar → ACP Client → `ACP: New Conversation` → pick `Oh My Pi`. The status bar shows `ACP: Oh My Pi` when connected. The chat panel renders OMP's own session config as native controls (mode Default/Plan, model, thinking level), and the agents tree lists real prior OMP sessions for the open folder, because the client calls `session/list` and OMP answers from `~/.omp/agent/sessions`.
+
+Operational notes:
+
+- credentials never move. OMP authenticates itself from `~/.omp` via its `agent` auth method; the extension is not given any key. This is why the ACP route was chosen over exposing OMP on a loopback port
+- the IDE runs as `loca`, which holds `NOPASSWD: ALL`. An OMP session in this panel is therefore root-equivalent, gated only by Authelia one_factor on `cdsr.loca.zone`. Leave the client's permission prompts enabled; its file and terminal handlers are not workspace-confined
+- OMP's own `tools.approvalMode` default is permissive and subagents are unconditionally so. Set it explicitly rather than inheriting it
+- one `omp acp` process serves multiple sessions, but stdio carries a single client, so the IDE panel and a CLI `omp` are separate processes. They share `~/.omp`: session transcripts are per-directory with unique filenames and atomic rewrites, so that is safe, but memory and config are shared context, not isolation
+- OMP cannot be reached over MCP. It implements an MCP client only, so Continue's `mcpServers` cannot point at it; ACP is the only protocol bridge
 
 ## Lock file mechanics
 
diff --git a/q5vault/operations/index.md b/q5vault/operations/index.md
index 448720b..a3256d4 100644
--- a/q5vault/operations/index.md
+++ b/q5vault/operations/index.md
@@ -13,7 +13,7 @@ Operations reference for the single-user code-server deployment at `cdsr.loca.zo
 
 - [[operations/install-upgrade]] — install or upgrade the upstream Debian package, service lifecycle, extension reinstall after Code version bumps, fallback path
 - [[operations/auth-tls]] — Authelia access rule, nginx four-block topology, shared cert lineage, proof commands, rollback/debug order
-- [[operations/extensions]] — pinned baseline table, optional Cody, explicit exclusions, first-run sign-in notes, install/audit scripts
+- [[operations/extensions]] — pinned baseline table, the OMP-over-ACP agent panel, LiteLLM model wiring, optional Cody, explicit exclusions, install/audit scripts
 - [[operations/verification]] — every smoke check with expected outputs: systemctl, loopback healthz, auth redirect, wiki public, Authelia compose, extension audit, browser flows, dev proxy, wiki build
 
 ## 🚨 Triage order when something is broken
diff --git a/q5vault/operations/verification.md b/q5vault/operations/verification.md
index 7cc8df1..976ef1a 100644
--- a/q5vault/operations/verification.md
+++ b/q5vault/operations/verification.md
@@ -76,8 +76,23 @@ Exit code: `0`
 1. Open `https://cdsr.loca.zone` in a browser.
 2. Complete Authelia one-factor login at `auth.loca.zone`.
 3. Confirm code-server editor shell loads (activity bar, file explorer, terminals).
-4. Open Extensions view (Ctrl+Shift+X): verify `Continue` and `Claude Code` are installed and enabled.
+4. Open Extensions view (Ctrl+Shift+X): verify `Continue`, `Claude Code` and `ACP Client` are installed and enabled.
 5. Open integrated terminal (Ctrl+`): run `whoami` -> output `loca`.
+6. If the activity bar shows no third-party icons, the folder is in Restricted Mode: Command Palette → `Workspaces: Manage Workspace Trust` → Trust. Workspace Trust silently disables every third-party extension, which looks exactly like a failed install.
+
+## 7b. OMP agent panel over ACP (manual)
+
+Proves the `omp` harness is reachable as a native agent, end to end.
+
+1. Activity bar → `ACP Client`. The `AGENTS` tree lists `Oh My Pi` alongside the extension's shipped defaults; only `Oh My Pi` is a pinned local binary.
+2. Command Palette → `ACP: New Conversation` → pick `Oh My Pi`.
+3. Status bar reads `ACP: Oh My Pi`. The chat header shows the open folder and OMP's own session controls: mode (Default/Plan), model, thinking level.
+4. Send `Reply with exactly: IDE-ACP-OK`. Expect the reply text plus rendered tool-call and plan cards.
+5. Agent-side check without the IDE, if the panel misbehaves:
+   ```bash
+   printf '%s\n' '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":1,"clientCapabilities":{"fs":{"readTextFile":true,"writeTextFile":true}}}}' | omp acp
+   ```
+   Expect one JSON line containing `"protocolVersion":1` and `"agentInfo":{"name":"oh-my-pi"`. If that works and the panel does not, the fault is the extension or `acp.agents`, not OMP.
 
 ## 8. dev-routing smoke (manual)