diff --git a/.github/releases/v1.0.43.md b/.github/releases/v1.0.43.md
new file mode 100644
index 000000000..10124042c
--- /dev/null
+++ b/.github/releases/v1.0.43.md
@@ -0,0 +1,32 @@
+## opencode {VERSION}
+
+{Prerelease/Stable} release from `{branch}` branch. Memory can now be enabled on the first request after repairing a missing project initialization stamp.
+
+---
+
+### 🐛 Bug Fixes
+
+- **Memory activation**: when a git project already has a non-empty AGENTS.md but its initialization stamp is missing, `/memory on` now repairs the stamp and completes activation in the same request. Missing configuration, disabled configuration, and an unavailable configured model follow the normal initialization and model-reselection paths. Projects without initialization evidence remain blocked ([#581](https://github.com/LeXwDeX/OpenCode-GraphAgent/issues/581)).
+
+---
+
+### 🧪 Test Summary
+
+```
+Memory, search, server wiring: 116 pass, 0 fail
+Activation regression:          5 pass, 0 fail (included above)
+opencode typecheck:             passed
+lint:                          4846 warnings, 0 errors; existing 4850 cap unchanged
+```
+
+---
+
+### 🔍 Verification
+
+Local verification used Bun 1.3.14. The activation regression failed before the fix and now checks the first command response, persisted enabled state, replacement model, initialization stamp, and subsequent status. An independent review reran the focused regression and inspected the controller, identity fence, locks, and generation-based persistence. The memory suite also covers admission, identity migration, cross-process persistence, search, model wire format, and production server dependency wiring.
+
+Integration and promotion require current-head CI and SpecGit acceptance. The release workflow validates reference templates and builds Linux, macOS, and Windows archives with SHA256SUMS. Real external model-provider quality and existing user memory content are outside this verification.
+
+---
+
+**Full changelog:** [`{previous_tag}`...`{current_tag}`](https://github.com/LeXwDeX/OpenCode-GraphAgent/compare/{previous_tag}...{current_tag})
diff --git a/.specgit.yaml b/.specgit.yaml
index 0d2250db7..5175e4629 100644
--- a/.specgit.yaml
+++ b/.specgit.yaml
@@ -1,16 +1,12 @@
 version: 1
-delivery: stable-release-1042
+delivery: memory-activation
 context:
-  kind: branch
-  branch: chore/576-stable-release-1042
+  kind: worktree
+  label: delivery
+  branch: fix/581-memory-activation
 issues:
-  - 568
-  - 569
-  - 570
-  - 571
-  - 572
-  - 574
-  - 575
-  - 576
-  - 578
-pr: 577
+  - 581
+issueKinds:
+  - issue: 581
+    kind: kind::fix
+pr: 582
diff --git a/packages/opencode/src/memory/memory.ts b/packages/opencode/src/memory/memory.ts
index eddb46639..05c7b2fe7 100644
--- a/packages/opencode/src/memory/memory.ts
+++ b/packages/opencode/src/memory/memory.ts
@@ -841,7 +841,10 @@ export const layer: Layer.Layer<
 
     const setEnabledUnsafe = Effect.fn("Memory.setEnabledUnsafe")(function* (enabled: boolean) {
       const initial = yield* configuration()
-      if (!initial) {
+      // statusReason can repair a missing init stamp. Re-read before deciding
+      // activation is blocked so this same command can enable or repair the model.
+      const ready = initial ?? (enabled ? yield* statusReason().pipe(Effect.andThen(configuration)) : undefined)
+      if (!ready) {
         if (!enabled) return "Memory remains off"
         // #350: a /memory on that cannot activate must say WHY — the bare
         // "remains off" sent users to guess (real case: an initialized git
@@ -849,11 +852,11 @@ export const layer: Layer.Layer<
         // disabled Memory).
         return (yield* statusReason()) ?? "Memory remains off"
       }
-      const value = initial.loaded
-        ? initial
+      const value = ready.loaded
+        ? ready
         : yield* Effect.gen(function* () {
             yield* initUnsafe()
-            return (yield* configuration()) ?? initial
+            return (yield* configuration()) ?? ready
           })
       if (!value.loaded) return "Memory remains off" as const
       const loaded = value.loaded
diff --git a/packages/opencode/test/memory/memory-init-stamp-selfheal.test.ts b/packages/opencode/test/memory/memory-init-stamp-selfheal.test.ts
index 19df6842c..9cab14312 100644
--- a/packages/opencode/test/memory/memory-init-stamp-selfheal.test.ts
+++ b/packages/opencode/test/memory/memory-init-stamp-selfheal.test.ts
@@ -76,6 +76,42 @@ const layer = Layer.mergeAll(Memory.layer.pipe(Layer.provideMerge(base)), CrossS
 const it = testEffect(layer)
 
 describe("memory /init stamp self-heal", () => {
+  for (const configured of ["missing", "disabled", "unavailable-model"]) {
+    it.live(
+      `first enable completes after self-healing with ${configured} project config`,
+      () =>
+        Effect.gen(function* () {
+          const dir = yield* tmpdirScoped({ git: true })
+          yield* provideInstance(dir)(
+            Effect.gen(function* () {
+              const project = yield* Project.Service
+              const memory = yield* Memory.Service
+              const config = yield* MemoryConfig.Service
+              const { project: info } = yield* project.fromDirectory(dir)
+              fs.writeFileSync(path.join(info.worktree, "AGENTS.md"), "# project guide\n")
+              if (configured !== "missing") {
+                yield* config.writeProject(info.worktree, {
+                  schema_version: 1,
+                  enabled: configured === "unavailable-model",
+                  model: configured === "unavailable-model" ? "missing/model" : "openai/gpt-5.2",
+                  topic_limit: 10,
+                  turn_interval: 5,
+                  injection: { max_topics: 3, max_tokens: 1_200 },
+                })
+              }
+
+              expect(yield* memory.setEnabled(true)).toBe("Memory on")
+              expect((yield* project.get(info.id))?.time.initialized).toBeDefined()
+              expect((yield* config.load(info.worktree))?.config.enabled).toBe(true)
+              expect((yield* config.load(info.worktree))?.config.model).toBe("openai/gpt-5.2")
+              expect(yield* memory.status()).toBe("Memory on")
+            }),
+          ).pipe(Effect.provide(testInstanceStoreLayer))
+        }),
+      { timeout: 30_000 },
+    )
+  }
+
   it.live(
     "statusReason stamps the project when AGENTS.md already exists",
     () =>
@@ -117,6 +153,9 @@ describe("memory /init stamp self-heal", () => {
 
             const reason = yield* memory.statusReason()
             expect(reason).toContain("/init")
+            expect(yield* memory.setEnabled(true)).toContain("/init")
+            expect(yield* memory.setEnabled(false)).toBe("Memory remains off")
+            expect((yield* project.get(info.id))?.time.initialized).toBeUndefined()
             // #415 diagnostics: the blocker carries the actual row state so a
             // stale identity (worktree pointing at a deleted clone) is visible.
             expect(reason).toContain("time_initialized")