diff --git a/PROJECT_STATE.md b/PROJECT_STATE.md
index 08030c53..45ce7d08 100644
--- a/PROJECT_STATE.md
+++ b/PROJECT_STATE.md
@@ -3,6 +3,30 @@
 > Starting-point snapshot for new sessions. Last updated: 2026-08-10 (final verification).
 > Point a fresh session here ("read PROJECT_STATE.md") before substantial work.
 
+### P2 host preprocessing CLI — implementation complete, automated PASS, manual PENDING (2026-08-11)
+
+- **Scope:** P2 (PRD D2, based on the P1.1 registry contract): the installed native `thothctl`
+  binary is the only host interface for workspace preprocessing. Commands: `workspace inspect`,
+  `preprocess dwh`, `schema suggest-fks`, `schema check`, `index-schema`, `preprocess evidence`,
+  `preprocess run`, with the exact grammar, file-ingress bounds, result contract and exit codes in
+  `docs/contracts/workspace-preprocessing-cli.md`.
+- **Operator:** `workspace-maintenance` is a profile-gated Compose service sharing the core image,
+  with no Pi auth/state, no backend/Pi/frontend listener, no Git credentials, and a compiled Node
+  entrypoint (`backend/src/workspace-maintenance.ts`) driving the existing harness engine through
+  pristine JSON machine interfaces (`schema_cmd.py`, `vector_cmd.py`, `preprocess_cmd.py`).
+- **Boundaries honored:** FK review is digest-bound (candidate digest == persisted artifact; a
+  review accepted for the same candidate content counts); Qdrant collections are never created by
+  the product path (`require_existing` + pre-provisioned fixture, P4 owns lifecycle); filesystem
+  Evidence stops with `evidence_materialization_required` (P6); HTTP Evidence enforces an
+  installation private-host allowlist; `ssh_tunnel` stays fail-closed (P10); cross-revision DWH
+  reuse is explicitly P3.
+- **Retained evidence:** `.artifacts/p2-integration/p2-b109757b26388a5ed6b1d173dee86584/`
+  (11/11 checks PASS), bound to clean source commit
+  `de5de36f9a4edfd4fbebf277822090871ccdd61f`.
+- **Manual gate:** P2 walkthrough in `docs/testing/p2-p6-manual-verification.md`; decision
+  **PENDING** and recorded independently. P3 and later start only after an explicit new
+  authorization.
+
 ### P1.1 workspace-directory registry — automated integration PASS, manual PENDING (2026-08-11)
 
 - **Scope:** P1 correction (not preprocessing). Root curator-owned catalog `thoth-workspaces.yaml`;
diff --git a/docs/install/local-workspace-registry.md b/docs/install/local-workspace-registry.md
index 13fc9c3b..1fea6358 100644
--- a/docs/install/local-workspace-registry.md
+++ b/docs/install/local-workspace-registry.md
@@ -19,6 +19,17 @@ Compose stack. Never put credentials in workspace YAML, Git, browser drafts, dia
 | Qdrant | Internal | Mandatory private Compose semantic service; persistent `qdrant-data` volume. |
 | Ollama embedding | Internal | Mandatory private Compose semantic service for `qwen3-embedding:0.6b`. |
 
+
+## Host preprocessing (P2)
+
+The installed native `thothctl` is the only host entrypoint for workspace preprocessing
+(introspection+LSH, FK review, schema indexing, HTTP Evidence). Use
+`thothctl --installation <thothii-installation.yaml> workspace <command> --workspace <id> [--json]`
+per `docs/contracts/workspace-preprocessing-cli.md` and the P2 walkthrough in
+`docs/testing/p2-p6-manual-verification.md`. Preprocessing runs through the profile-gated
+`workspace-maintenance` Compose service; it never starts a backend/Pi/frontend listener and never
+attaches Git credentials.
+
 ## Prerequisites
 
 - macOS: Docker Desktop, Git, and sufficient volume disk space. Git Credential Manager is useful
diff --git a/docs/install/server-workspace-registry.md b/docs/install/server-workspace-registry.md
index 4b11d96b..c96911d9 100644
--- a/docs/install/server-workspace-registry.md
+++ b/docs/install/server-workspace-registry.md
@@ -14,6 +14,17 @@ proxy; never publish the core port directly.
 | Qdrant | Internal | Mandatory private Compose semantic service; persistent `qdrant-data` volume. |
 | Ollama embedding | Internal | Mandatory private Compose semantic service for `qwen3-embedding:0.6b`. |
 
+
+## Host preprocessing (P2)
+
+The installed native `thothctl` is the only host entrypoint for workspace preprocessing
+(introspection+LSH, FK review, schema indexing, HTTP Evidence). Use
+`thothctl --installation <thothii-installation.yaml> workspace <command> --workspace <id> [--json]`
+per `docs/contracts/workspace-preprocessing-cli.md` and the P2 walkthrough in
+`docs/testing/p2-p6-manual-verification.md`. Preprocessing runs through the profile-gated
+`workspace-maintenance` Compose service; it never starts a backend/Pi/frontend listener and never
+attaches Git credentials.
+
 ## Service account, storage, and firewall
 
 Create a dedicated host service account and an operator root such as `/srv/thothii`. The core
diff --git a/docs/testing/p2-p6-manual-verification.md b/docs/testing/p2-p6-manual-verification.md
index 741b0e4a..dca9a92b 100644
--- a/docs/testing/p2-p6-manual-verification.md
+++ b/docs/testing/p2-p6-manual-verification.md
@@ -16,25 +16,45 @@
 
 ## P2 — Host preprocessing CLI
 
-**Status:** instructions to be finalized by P2 implementation; not yet runnable.
+**Status:** P2 implementation complete; automated integration PASS; manual acceptance PENDING.
 
 Manual goal: from a clean local installation, use only `thothctl` on the host to inspect one
 registry workspace and execute the controlled REST-DWH/HTTP-Evidence preprocessing path without a
-host Python or Node runtime.
+host Python or Node runtime. Use a fresh operator root and a fresh fixture Git remote; never reuse
+the automated `.artifacts/p2-integration/**` state.
 
-Checks to fill during P2:
+Commands (contract: `docs/contracts/workspace-preprocessing-cli.md`):
 
-1. installation/render preflight;
-2. workspace inspection and exact revision display;
-3. DWH preprocessing and resume;
-4. FK machine output and manual-review checkpoint;
-5. schema check/index;
-6. HTTP Evidence dry-run and real run;
-7. idempotent rerun;
-8. filesystem Evidence stable deferred error;
-9. secret scan and exact cleanup.
+```bash
+thothctl --installation <abs>/thothii-installation.yaml workspace inspect --workspace <id> --json
+thothctl --installation <abs>/thothii-installation.yaml workspace preprocess dwh --workspace <id> --json
+thothctl --installation <abs>/thothii-installation.yaml workspace preprocess dwh --workspace <id> --resume <run-id> --json
+thothctl --installation <abs>/thothii-installation.yaml workspace schema suggest-fks --workspace <id> --from-sql <file>.sql --output <candidates>.yaml --json
+thothctl --installation <abs>/thothii-installation.yaml workspace schema check --workspace <id> --annotations <reviewed>.yaml --reviewed-candidates <sha256:hex> --json
+thothctl --installation <abs>/thothii-installation.yaml workspace index-schema --workspace <id> --json
+thothctl --installation <abs>/thothii-installation.yaml workspace preprocess evidence --workspace <id> --dry-run --json
+thothctl --installation <abs>/thothii-installation.yaml workspace preprocess evidence --workspace <id> --json
+thothctl --installation <abs>/thothii-installation.yaml workspace preprocess run --workspace <id> --json
+```
 
-Decision: **PENDING**.
+Checks:
+
+1. installation/render preflight (`inspect` returns exact revision + catalog/descriptor digests);
+2. DWH introspection+LSH succeeds, rerun is `unchanged`, `--resume <run-id>` is `unchanged`/`succeeded`;
+3. `schema suggest-fks` returns pristine JSON with `suggestedFksYaml` and a `manual_review_required`
+   block (exit 3) when candidates exist; the suggested YAML digest equals the reported digest;
+4. `schema check --annotations <reviewed> --reviewed-candidates <digest>` succeeds after review;
+5. `index-schema` counts against a pre-provisioned compatible collection and rerun is `unchanged`;
+6. HTTP Evidence `--dry-run` returns `dry_run`, the real run publishes, rerun is `unchanged`, an input
+   mutation produces a new generation/ACTIVE;
+7. filesystem Evidence returns a stable `evidence_materialization_required` block with no partial
+   corpus/vector publication;
+8. negatives: missing workspace (`workspace_not_activatable`), resume of a nonexistent run
+   (`preprocessing_resume_mismatch`), invalid annotations digest (`annotation_invalid`), no-Evidence
+   skip warning, no collection creation, no backend/Pi/frontend listener;
+9. secret scan over retained artifacts and exact owned-resource cleanup.
+
+Decision: **PENDING** (independent manual gate; automation never records PASS).
 
 ## P3 — Effective config and `.tht-dwh`
 
diff --git a/scripts/verify-workspace-install-docs.sh b/scripts/verify-workspace-install-docs.sh
index 7b4d0dbd..051a8aaa 100755
--- a/scripts/verify-workspace-install-docs.sh
+++ b/scripts/verify-workspace-install-docs.sh
@@ -176,9 +176,11 @@ verify_compose_internal_semantic_contract() {
 import sys, yaml, pathlib
 doc = yaml.safe_load(pathlib.Path(sys.argv[1]).read_text())
 services = doc["services"]
-expected = {"core", "frontend", "qdrant", "embedding", "embedding-model-init"}
+expected = {"core", "frontend", "qdrant", "embedding", "embedding-model-init", "workspace-maintenance"}
 if set(services) != expected:
     raise SystemExit(f"compose.yaml services mismatch: {sorted(services)}")
+if doc["services"]["workspace-maintenance"].get("profiles") != ["workspace-maintenance"]:
+    raise SystemExit("workspace-maintenance must be profile-gated and absent from default startup")
 core = services["core"]
 env = core["environment"]
 for key, value in {