diff --git a/AGENTS.md b/AGENTS.md
index d1245f0..9cb5654 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -79,23 +79,19 @@ The unscoped `cometapi` package is the primary Node SDK. `@cometapi` is the
 standard scope for future official scoped packages; do not introduce new
 official packages under `@cometapi-dev`.
 
-Stable `0.1.1` established the runtime options boundary and repaired the release
-path without expanding the 0.1 resource surface. Release Please created the
-reviewed patch PR, immutable tag, and GitHub Release. Publication required a
-disclosed one-time main-context recovery because the immutable tag predated the
-repaired tag handoff. The recovery published only the exact previously verified
-artifact through npm OIDC, then the repository restored its variables and
-tag-only Environment policy. The current workflow contains no
-publication-recovery input, fixed recovery run or artifact ID,
-prior-package-artifact or live-evidence reuse, or branch-context publication
-path.
+Stable maintenance established the runtime options boundary without expanding
+the 0.1 resource surface. Release-specific recovery history and immutable
+evidence belong in `RELEASING.md`, not in this durable operating contract. The
+permanent stable-patch path uses a reviewed Release Please PR, an immutable tag
+and GitHub Release, an unprivileged tag handoff, fresh exact-artifact and bounded
+live verification, and tag-bound npm OIDC publication. That path has completed
+an end-to-end registry publication.
 
 Release Please remains disabled between explicitly authorized release
-operations. Permanent stable patches follow only the tag-bound path in
-`RELEASING.md`. The recovery provenance for stable `0.1.1` is historical
-evidence and does not prove an execution of the permanent path. The next
-explicitly authorized stable patch is that path's first end-to-end registry
-execution.
+operations. The current workflow contains no publication-recovery input, fixed
+recovery run or artifact ID, prior-package-artifact or live-evidence reuse, or
+branch-context publication path. Permanent stable patches follow only the
+tag-bound path in `RELEASING.md`.
 
 ## Product Contract
 
diff --git a/COMPATIBILITY.md b/COMPATIBILITY.md
index c86bcc8..1f1834b 100644
--- a/COMPATIBILITY.md
+++ b/COMPATIBILITY.md
@@ -152,3 +152,18 @@ chain recorded in [RELEASING.md](./RELEASING.md#stable-011-release-evidence).
 Separate public-registry verification passed ESM, CommonJS, declarations,
 supported mocked calls, one effective OpenAI installation, official error
 identity, integrity, signature, and provenance.
+
+For stable `0.1.2`, the strict structural option declarations and packed
+ESM/CommonJS fixtures passed
+[source PR CI 30600555979](https://github.com/cometapi-dev/cometapi-node/actions/runs/30600555979)
+and the action-authored release candidate passed
+[CI run 30600746212 attempt 2](https://github.com/cometapi-dev/cometapi-node/actions/runs/30600746212/attempts/2).
+Release Please created the immutable
+[`v0.1.2` Release](https://github.com/cometapi-dev/cometapi-node/releases/tag/v0.1.2),
+and
+[Publish run 30601661643](https://github.com/cometapi-dev/cometapi-node/actions/runs/30601661643)
+completed the first permanent tag-bound release sequence. Its bounded live
+smoke, OIDC publication, public-registry ESM/CommonJS and declaration checks,
+single effective OpenAI installation, official error identity, integrity,
+signature, and provenance evidence is recorded in
+[RELEASING.md](./RELEASING.md#stable-012-release-evidence).
diff --git a/RELEASING.md b/RELEASING.md
index 0c4b200..978a916 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -672,6 +672,107 @@ Finally, commit-level `Release-As:` is rejected before the action because the
 GitHub documents that a `GITHUB_TOKEN`-created PR's opened or synchronize event
 [creates an approval-required workflow run](https://github.com/github/docs/blob/e1e4aa937308f21c411c248b4966873536bb0cba/data/reusables/actions/actions-do-not-trigger-workflows.md#L1-L6).
 
+## Stable 0.1.2 release evidence
+
+Stable `0.1.2` completed on 2026-07-31 with these independently auditable
+layers:
+
+- Source [PR #44](https://github.com/cometapi-dev/cometapi-node/pull/44) fixed
+  the structural TypeScript option bypass, made consumer documentation
+  release-neutral, and prepared the permanent release path without expanding
+  the supported resource surface. Final head
+  `c0934cc804fb5c23f0ff38e463cdfb00784da159` passed
+  [CI run 30600555979](https://github.com/cometapi-dev/cometapi-node/actions/runs/30600555979)
+  and merged as
+  [`1d62b52fc5ca2fc803c11fbc99cf9c5991c6c974`](https://github.com/cometapi-dev/cometapi-node/commit/1d62b52fc5ca2fc803c11fbc99cf9c5991c6c974).
+- Manual Release Please preparation
+  [run 30600722163 attempt 1](https://github.com/cometapi-dev/cometapi-node/actions/runs/30600722163/attempts/1)
+  ran from that exact merge on `main`, logged `updating from 0.1.1 to 0.1.2`,
+  and created only the action-authored release PR below. This is remote evidence
+  that the repaired stable-patch configuration selected `0.1.2`, not `0.2.0`.
+- The resulting four-file release
+  [PR #45](https://github.com/cometapi-dev/cometapi-node/pull/45) had final head
+  `c335f7081b9e8bb7cce7060c85c53d08947423d1` and changed only the manifest,
+  changelog, package lock, and package manifest. After the human workflow gate,
+  its complete blocking matrix passed in
+  [CI run 30600746212 attempt 2](https://github.com/cometapi-dev/cometapi-node/actions/runs/30600746212/attempts/2).
+  Human repository administrator `tensornull`, distinct from bot author
+  `github-actions[bot]`, submitted formal
+  [review 4825214156](https://github.com/cometapi-dev/cometapi-node/pull/45#pullrequestreview-4825214156)
+  with `state=APPROVED` against that exact head before merge. The reviewed merge
+  produced
+  [`e348f7800c6088e0349b67ce5927cd9ba50dde25`](https://github.com/cometapi-dev/cometapi-node/commit/e348f7800c6088e0349b67ce5927cd9ba50dde25).
+- [Release Please run 30601626589 attempt 1](https://github.com/cometapi-dev/cometapi-node/actions/runs/30601626589/attempts/1)
+  created the exact lightweight `v0.1.2` tag and immutable non-prerelease GitHub
+  Release ID `362834814`. The bot-authored
+  [`v0.1.2` Release](https://github.com/cometapi-dev/cometapi-node/releases/tag/v0.1.2)
+  targets the reviewed merge commit and was published at
+  `2026-07-31T03:27:59Z`.
+- The unprivileged
+  [handoff run 30601651061 attempt 1](https://github.com/cometapi-dev/cometapi-node/actions/runs/30601651061/attempts/1)
+  validated the Release Please result and immutable Release before dispatching
+  the exact tag. Tag-bound
+  [Publish run 30601661643 attempt 1](https://github.com/cometapi-dev/cometapi-node/actions/runs/30601661643/attempts/1)
+  rebuilt the release commit, passed the full release checks and public
+  declarations/fixtures, and uploaded artifact ID `8782147591`, named
+  `npm-package-0.1.2-30601661643-1`, with ZIP digest
+  `sha256:59f840b182e2e7c74b237ba507ea725e76e60174ce817b8fc18d99c6631d0131`.
+  Its sole tarball has SHA-256
+  `88923983b62cbeaf37f7aacdea4d89b9b9a55b81ab8f0748cf1a8d0135c74d58`
+  and is byte-identical to the public registry tarball.
+- The same run's
+  [live job 91065744397](https://github.com/cometapi-dev/cometapi-node/actions/runs/30601661643/job/91065744397)
+  checked out `refs/tags/v0.1.2` and passed exactly three sequential `gpt-5.4`
+  requests with a 16-token output cap, 60-second per-request timeout,
+  concurrency one, and stop-on-first-failure behavior.
+- Attempt 1's protected npm job `91065788380` published through the tag-only npm
+  Environment and GitHub Actions OIDC at `2026-07-31T03:36:57.735Z`. Publication
+  succeeded, but the immediately following attestation fetch received the
+  registry's transient `404`, so the job failed after npm mutation. After the
+  attestations became readable, the sole authorized
+  [failed-job replay](https://github.com/cometapi-dev/cometapi-node/actions/runs/30601661643/attempts/2)
+  used npm job `91069383430`; it reported
+  `cometapi@0.1.2 already matches the verified artifact; resuming checks.` and
+  completed without a second `npm publish`. GitHub preserved the successful
+  exact-artifact job `91069398975` and bounded-live job `91069383750` from
+  attempt 1.
+- At closeout, npm's stable channel resolved to `0.1.2`, while the prerelease
+  channel remained `0.1.0-alpha.3`. The package has SHA-1
+  `2f3b1ec8c9149172fe52ac25b0a7658cdc102ed8` and integrity
+  `sha512-JmFFjOX9GBJqjp7I8XOrTvCHAxd8zYQjLKIX/CKE0wPQ+98HpzBXn4cuA/OUzRsW8/GtX2vfYBEsL588P1XWkw==`.
+  `npm audit signatures` passed. npm exposes its publish attestation at
+  [Sigstore index 2298372367](https://search.sigstore.dev/?logIndex=2298372367)
+  and SLSA provenance at
+  [index 2298372342](https://search.sigstore.dev/?logIndex=2298372342). The
+  provenance binds `cometapi@0.1.2` to `refs/tags/v0.1.2`, commit
+  `e348f7800c6088e0349b67ce5927cd9ba50dde25`, and Publish run
+  `30601661643/1`.
+- Clean public-registry verification installed `cometapi@0.1.2` with one
+  effective `openai@6.47.0` installation and passed ESM, CommonJS, `.mts` and
+  `.cts` declarations, supported mocked calls, official `APIError instanceof`
+  identity, integrity, registry signatures, and both attestations.
+- Post-publication hardening
+  [PR #46](https://github.com/cometapi-dev/cometapi-node/pull/46) made the
+  observed failed-job convergence finite and fail-closed. Final head
+  `05041c4080a57814a3d2e90122185951b9b84404` passed
+  [PR CI 30607413580](https://github.com/cometapi-dev/cometapi-node/actions/runs/30607413580)
+  and exact-head owner audit
+  [review 4825808534](https://github.com/cometapi-dev/cometapi-node/pull/46#pullrequestreview-4825808534),
+  recorded as `state=COMMENTED`, merged as
+  `d02b87da330d4b71d194f5c3a6df727b20dc9df3`, and passed
+  [default-branch CI 30607756481](https://github.com/cometapi-dev/cometapi-node/actions/runs/30607756481).
+  Final state was read back as `RELEASE_PLEASE_ENABLED=false`,
+  `LIVE_SMOKE_ENABLED=true`, and exactly one npm Environment deployment policy,
+  `tag:v*` (policy ID `55718965`). Post-merge
+  [Release Please run 30607756491](https://github.com/cometapi-dev/cometapi-node/actions/runs/30607756491)
+  and
+  [Publish handoff run 30607764192](https://github.com/cometapi-dev/cometapi-node/actions/runs/30607764192)
+  were skipped as required.
+
+This is the first completed end-to-end registry publication through the
+permanent immutable-tag handoff. The earlier one-time main-context recovery
+remains historical evidence only and is not a reusable release path.
+
 ## Stable 0.1.1 release evidence
 
 Stable `0.1.1` completed on 2026-07-30 with these independently auditable
@@ -754,12 +855,10 @@ layers:
   `LIVE_SMOKE_ENABLED=true`, and exactly one npm deployment policy,
   `tag:v*` (policy ID `55718965`).
 
-The permanent immutable-tag handoff has passed static contract checks,
-adversarial mutations, pull-request CI, and default-branch CI. Because the
-immutable `v0.1.1` tag predates that final path, `0.1.1` publication used the
-disclosed main-context exception above. The next explicitly authorized stable
-patch remains the first end-to-end registry publication of the permanent
-tag-bound route.
+The permanent immutable-tag handoff later completed its first end-to-end
+registry publication in the stable `0.1.2` evidence above. The `0.1.1`
+publication remains evidence only for the disclosed main-context exception and
+does not authorize that path again.
 
 ## Stable 0.1.0 release evidence
 
diff --git a/ROADMAP.md b/ROADMAP.md
index c66a062..4846107 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -5,9 +5,10 @@ Last updated: 2026-07-31
 Repository contract: This roadmap is self-contained and is the public source
 of truth for this repository's release sequence.
 
-Stable `0.1.1` completed the corrected options contract, immutable GitHub
-Release, bounded live smoke, OIDC publication, provenance, signature, separate
-public-install verification, and recovery-path cleanup on 2026-07-30.
+Stable `0.1.2` completed the public options type contract, release-neutral
+consumer documentation, the first permanent immutable-tag publication, bounded
+live smoke, OIDC provenance, public-install verification, and replay hardening
+on 2026-07-31.
 
 ## Product Target
 
@@ -24,9 +25,10 @@ Release then failed before invoking npm because its publication guard rejected
 the fixed `actions/setup-node` authentication placeholder.
 `0.1.0-alpha.3` subsequently completed the OIDC, provenance, ownership, and
 public-install verification sequence. Stable `0.1.1` completed its separately
-recorded release sequence on 2026-07-30. Stable 0.1.x packages use `latest`, and
-Registry Alpha artifacts use `next`; query npm and GitHub rather than treating
-this roadmap as current registry state.
+recorded recovery sequence on 2026-07-30, and stable `0.1.2` completed the
+permanent tag-bound sequence on 2026-07-31. Stable 0.1.x packages use `latest`,
+and Registry Alpha artifacts use `next`; query npm and GitHub rather than
+treating this roadmap as current registry state.
 
 ## Milestones
 
@@ -38,6 +40,7 @@ this roadmap as current registry state.
 | 0.1.x Registry Alpha       | Complete | Early adopters can install a functional, provenance-verified prerelease from npm's `next` channel through the OIDC-only publication path.      |
 | 0.1.0 Stable               | Complete | Users can install a fully verified package from npm's default channel.                                                                         |
 | 0.1.1 maintenance patch    | Complete | Users receive the corrected options contract; the permanent tag-bound release architecture is installed and the one-time recovery is recorded. |
+| 0.1.2 maintenance patch    | Complete | Users receive strict public option types and release-neutral package documentation through the verified permanent tag-bound publication path.  |
 | 0.2.0 provider-native text | Planned  | Users can opt into Anthropic Messages and Gemini text adapters through isolated subpath exports.                                               |
 | 0.3.0 CometAPI resources   | Planned  | Users receive typed access to the first stable CometAPI-specific account or platform resources.                                                |
 | Media and task APIs        | Later    | Users receive typed image, video, audio, upload, polling, and task lifecycle helpers after their contracts are stable.                         |
@@ -121,11 +124,10 @@ The permanent state is `RELEASE_PLEASE_ENABLED=false`,
 `LIVE_SMOKE_ENABLED=true`, and exactly one npm Environment deployment policy,
 `tag:v*`. Current stable publication uses an unprivileged Release Please
 handoff followed by an immutable-tag dispatch, fresh verification and live
-smoke, and tag-bound npm OIDC. Stable `0.1.1` itself has main-bound provenance
-from the disclosed recovery, so the next explicitly authorized stable patch is
-the first end-to-end registry execution of the permanent tag-bound path. Full
-evidence is recorded in
-[RELEASING.md](./RELEASING.md#stable-011-release-evidence).
+smoke, and tag-bound npm OIDC. Stable `0.1.2` completed the first end-to-end
+registry execution of that permanent path. Full immutable evidence is recorded
+in [RELEASING.md](./RELEASING.md#stable-012-release-evidence); the earlier
+one-time recovery remains separately recorded as historical evidence.
 
 ## Private Remote Validation
 
@@ -304,14 +306,38 @@ Completion evidence:
   recovery-path cleanup. The evidence is recorded in
   [RELEASING.md](./RELEASING.md#stable-011-release-evidence).
 
+## 0.1.2: Public Contract and Tag-Bound Release Verification (Complete)
+
+Stable `0.1.2` redeclared `provider`, `workloadIdentity`, and
+`dangerouslyAllowBrowser` as optional `never` fields on `CometAPIOptions`.
+TypeScript negative tests now exercise variables, spreads,
+`satisfies ClientOptions`, and constrained generics through both the constructor
+and `withOptions`; the secret-free runtime guard remains authoritative for plain
+JavaScript and casts. The patch also made the README release-neutral and kept
+`package.json` as the sole candidate-version authority without changing the
+supported resource surface.
+
+The action-authored, exact-head-approved Release Please PR produced the
+immutable tag and GitHub Release. The unprivileged handoff then dispatched the
+exact tag, rebuilt and verified the artifact, ran the bounded three-request live
+smoke, and published through the tag-only npm Environment with OIDC provenance.
+When npm's attestation endpoint briefly returned `404` after successful
+publication, the single failed-job replay detected the byte-identical existing
+version and completed verification without invoking `npm publish` again.
+
+Post-publication hardening made that observed recovery finite and executable:
+handoff, exact-artifact verification, and live smoke are attempt-1-only;
+publication permits only an attempt-2 existing-version convergence check; and
+attempt 3 or later fails before entering the npm Environment. Release-specific
+PR, review, run, artifact, registry, provenance, and final-state evidence is
+recorded in [RELEASING.md](./RELEASING.md#stable-012-release-evidence).
+
 ## Stable 0.1.x Maintenance
 
 Maintenance patches close contract and release-process gaps without expanding
-the supported resource surface. The active maintenance work redeclares the
-three reserved client controls as optional `never`, executes negative tests for
-variables, spreads, `satisfies ClientOptions`, and constrained generics through
-both the constructor and `withOptions`, and preserves the runtime guard for
-plain JavaScript and casts.
+the supported resource surface. Future maintenance must preserve the strict
+reserved-option type and runtime boundary, the release-neutral consumer
+documentation, and the immutable-tag publication contract established above.
 
 Durable README, agent, compatibility, roadmap, and release guidance uses 0.1.x
 capability and channel language instead of copying a mutable exact version from
@@ -319,7 +345,7 @@ the registry. `package.json` is the sole candidate-version authority, the packed
 README must match the reviewed source byte-for-byte, and the release gates
 reject exact-version current, approval, unpublished, or in-progress claims.
 
-This maintenance work is complete only after the normal four-file Release
+Each maintenance patch is complete only after the normal four-file Release
 Please PR, immutable tag and GitHub Release, fresh bounded live smoke, tag-bound
 npm OIDC publication, and independent public-registry installation all pass.
 Release-specific evidence is recorded after publication rather than predicted
@@ -394,11 +420,10 @@ The repository will maintain:
   registry verification. Only the tag-bound dispatch can reach verification,
   live, or publication authority.
 
-All workflow files must pass local `actionlint`. The permanent tag-bound
-publication contract has passed static, mutation, pull-request, and
-default-branch CI, but `0.1.1` used the disclosed main-context recovery. Until a
-later stable patch executes the permanent path through registry publication,
-release reports must keep that remote end-to-end qualification explicit.
+All workflow files must pass local `actionlint`. Stable `0.1.2` completed the
+permanent tag-bound publication contract through registry verification. Its
+post-publication replay hardening then passed static and mutation checks,
+pull-request CI, exact-head owner audit, and default-branch CI.
 
 The initial manual alpha preparation starts with an empty version manifest and
 a temporary `release-as: 0.1.0-alpha.1` setting. Its reviewed pull request must