diff --git a/docs/adr/ADR-0001-stage0-library-stack.md b/docs/adr/ADR-0001-stage0-library-stack.md
index 00801ed..f5ee0fb 100644
--- a/docs/adr/ADR-0001-stage0-library-stack.md
+++ b/docs/adr/ADR-0001-stage0-library-stack.md
@@ -1,9 +1,10 @@
 ---
 id: ADR-0001
 title: "Stage 0 library stack: schemas, pure fold, and validators"
-status: proposed
+status: accepted
 date: 2026-07-28
-decided_by: null
+decided_by: Bernd
+accepted_at: "2026-07-29"
 workstream: TREV-WP-0002 (trust-service-foundation)
 alternatives_considered: [TypeScript/Node, Go]
 ---
@@ -12,12 +13,12 @@ alternatives_considered: [TypeScript/Node, Go]
 
 ## Status
 
-**Proposed.** Per `CONTRIBUTING.md` "Human decision gates" and
-`workplans/TREV-WP-0002-trust-service-foundation.md` T01, this ADR locks
-implementation technology for the repository and **must not be treated as
-accepted without explicit human sign-off**. Agents may implement against
-this proposal, but WP-0002-T01 stays `todo` (not `done`) until a maintainer
-accepts or revises it.
+**Accepted 2026-07-29** by the maintainer (Bernd), confirming the stack
+already implemented under `workplans/TREV-WP-0002-trust-service-foundation.md`
+T02–T06: Python 3.11+, `jsonschema`, `pytest`, `hatchling` src-layout,
+SHA-256 canonical-serialization hash chain, Ed25519 signing. This decision
+locks implementation technology for Stage 0 schema/fold work only (§ Scope
+below) — it does not extend to a future hosted Trust Service ADR.
 
 ## Scope
 
diff --git a/workplans/TREV-WP-0002-trust-service-foundation.md b/workplans/TREV-WP-0002-trust-service-foundation.md
index 1603513..1f0ea64 100644
--- a/workplans/TREV-WP-0002-trust-service-foundation.md
+++ b/workplans/TREV-WP-0002-trust-service-foundation.md
@@ -4,11 +4,11 @@ type: workplan
 title: "Trust Service foundation — schemas, pure fold, golden fixture"
 domain: infotech
 repo: target-revenue
-status: active
+status: finished
 owner: claude
 topic_slug: infotech
 created: "2026-07-28"
-updated: "2026-07-28"
+updated: "2026-07-29"
 state_hub_workstream_id: "2b31c2c6-7c68-4c66-ae26-5f25e91a9af0"
 supersedes_title: "Trust Service implementation bootstrap"
 ---
@@ -45,19 +45,22 @@ without explicit human accept if it locks language/runtime for the repo.
 
 ```task
 id: TREV-WP-0002-T01
-status: todo
+status: done
 priority: high
 state_hub_task_id: "bdaa3e6a-e13d-4d4f-a6b0-9c56c18850a9"
 human_accept_required: true
+human_accepted_by: Bernd
+human_accepted_at: "2026-07-29"
 ```
 
-Result 2026-07-28: Drafted `docs/adr/ADR-0001-stage0-library-stack.md`
-(status: **proposed**) — Python 3.11+, `jsonschema`, `pytest`, `hatchling`
-src-layout; SHA-256 canonical-serialization hash chain; Ed25519 signing.
-T02–T06 were implemented against this proposal so work could proceed in
-parallel, per the workplan note that "agents may draft the ADR for review."
-**This task stays `todo`** until a maintainer accepts or revises the ADR —
-implementation proceeding does not constitute acceptance.
+Result 2026-07-28: Drafted `docs/adr/ADR-0001-stage0-library-stack.md` —
+Python 3.11+, `jsonschema`, `pytest`, `hatchling` src-layout; SHA-256
+canonical-serialization hash chain; Ed25519 signing. T02–T06 were
+implemented against this proposal so work could proceed in parallel, per
+the workplan note that "agents may draft the ADR for review."
+
+Result 2026-07-29: **Human accept received** ("The stack as proposed is
+fine.") — ADR-0001 updated to `status: accepted`. Task closed.
 
 `specs/TechnicalSpecificationDocument.md` is non-binding on language and
 storage (§10). Record an ADR for the **Stage 0 library only**: language for