fix(deps): pin python-multipart>=0.0.27 (P0 canvas upload band-aid; task #256) #35

2026-05-20T02:23:34Z

hongming commented

2026-05-20 02:23:34 +00:00

P0 band-aid for canvas-chat upload 400

Symptom: every canvas chat upload returns opaque 400 "failed to parse multipart form" (Hermes confirmed in chloe-dong; affects every template because they all pip install molecule-ai-workspace-runtime).

Root cause (forensic a5bb950f): the published molecule-ai-workspace-runtime wheel does not pull in python-multipart. Starlette Request.form() raises an AssertionError parsing multipart bodies without it. Hot-installing into a running container makes the 400 disappear; container restart wipes it.

Proper SSOT fix: molecule-core mc#1578 — adds python-multipart>=0.0.27 to PYPROJECT_TEMPLATE in scripts/build_runtime_package.py. MERGED 2026-05-19T21:41Z (merge SHA 1278d57c). But the new runtime wheel has not reached PyPI yet — gated on the Gitea middleman rename + PyPI abuse-block recovery from the 0.1.999999 wheel incident. Could be hours.

This PR: 1-line direct pin in requirements.txt so the dependency is satisfied via the templates pip-install step, independent of the runtime wheel publish path. Cost: ~10 LOC fleet-wide (comment + pin). Fully compatible with the eventual SSOT fix — once mc#1578 publishes a new runtime version and a .runtime-version cascade arrives, the runtime wheel itself will carry python-multipart as a transitive and this direct pin becomes redundant + harmless.

Verification path (post-merge per fleet):

publish-image.yml runs on push to main → new ECR digest.
POST /cp/admin/runtime-image/promote with the new digest + git SHA (per reference_codex_pin_no_autopromoter_exists — promote endpoint exists, must be called explicitly; auto-promote hook is not wired on Gitea 1.22.6).
Read back /cp/admin/runtime-image and assert git_sha+image_digest match.
Restart an affected workspace (chloe-dong Hermes 5192737f-4df2-4594-ae11-a95f06210b9e) — required because pins are forward-only and existing containers keep the old image until explicit restart (reference_controlplane_admin_api_access).
Retry canvas-chat upload → expect 200, not 400.

Refs:

Task #256
Forensic a5bb950f
SSOT fix molecule-core mc#1578 (merged)
Operational guidance reference_codex_pin_no_autopromoter_exists, feedback_verify_actual_endstate_not_ack_follow_sop

Reviewers: 2 approvals required per branch protection — routing through core-devops + core-security per feedback_route_approvals_to_team_personas_not_orchestrator_sub_agents. Substance is minimal (one dep pin matching SSOT in already-merged mc#1578).

## P0 band-aid for canvas-chat upload 400 **Symptom:** every canvas chat upload returns opaque `400 "failed to parse multipart form"` (Hermes confirmed in chloe-dong; affects every template because they all `pip install molecule-ai-workspace-runtime`). **Root cause** (forensic `a5bb950f`): the published `molecule-ai-workspace-runtime` wheel does not pull in `python-multipart`. Starlette `Request.form()` raises an `AssertionError` parsing multipart bodies without it. Hot-installing into a running container makes the 400 disappear; container restart wipes it. **Proper SSOT fix:** `molecule-core mc#1578` — adds `python-multipart>=0.0.27` to `PYPROJECT_TEMPLATE` in `scripts/build_runtime_package.py`. **MERGED 2026-05-19T21:41Z** (merge SHA `1278d57c`). But the new runtime wheel has not reached PyPI yet — gated on the Gitea middleman rename + PyPI abuse-block recovery from the `0.1.999999` wheel incident. Could be hours. **This PR:** 1-line direct pin in `requirements.txt` so the dependency is satisfied via the templates pip-install step, independent of the runtime wheel publish path. Cost: ~10 LOC fleet-wide (comment + pin). Fully compatible with the eventual SSOT fix — once mc#1578 publishes a new runtime version and a `.runtime-version` cascade arrives, the runtime wheel itself will carry `python-multipart` as a transitive and this direct pin becomes redundant + harmless. **Verification path (post-merge per fleet):** 1. `publish-image.yml` runs on push to main → new ECR digest. 2. `POST /cp/admin/runtime-image/promote` with the new digest + git SHA (per `reference_codex_pin_no_autopromoter_exists` — promote endpoint exists, must be called explicitly; auto-promote hook is not wired on Gitea 1.22.6). 3. Read back `/cp/admin/runtime-image` and assert `git_sha`+`image_digest` match. 4. Restart an affected workspace (chloe-dong Hermes `5192737f-4df2-4594-ae11-a95f06210b9e`) — required because pins are forward-only and existing containers keep the old image until explicit restart (`reference_controlplane_admin_api_access`). 5. Retry canvas-chat upload → expect 200, not 400. **Refs:** - Task `#256` - Forensic `a5bb950f` - SSOT fix `molecule-core mc#1578` (merged) - Operational guidance `reference_codex_pin_no_autopromoter_exists`, `feedback_verify_actual_endstate_not_ack_follow_sop` **Reviewers:** 2 approvals required per branch protection — routing through `core-devops` + `core-security` per `feedback_route_approvals_to_team_personas_not_orchestrator_sub_agents`. Substance is minimal (one dep pin matching SSOT in already-merged mc#1578).

hongming added 1 commit 2026-05-20 02:23:35 +00:00

fix(deps): pin python-multipart>=0.0.27 (P0 canvas upload band-aid; task #256 )

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6a8d95ee4e

The canvas chat upload endpoint returns opaque `400 'failed to parse
multipart form'` for every workspace because the published
molecule-ai-workspace-runtime wheel does not carry python-multipart in
its dependency closure. Starlette's `Request.form()` raises an
AssertionError when parsing multipart bodies without it.

Forensic a5bb950f confirmed python-multipart is the load-bearing fix
(hot-install into a running container made the 400 disappear; restart
wiped it because pip-install is ephemeral).

The proper SSOT fix landed in molecule-core mc#1578 (MERGED
2026-05-19T21:41Z) — `scripts/build_runtime_package.py` now adds
`python-multipart>=0.0.27` to PYPROJECT_TEMPLATE. But the new runtime
wheel hasn't reached PyPI yet (gated on the Gitea middleman rename +
PyPI abuse-block recovery from the 0.1.999999 wheel). Could be hours.

This direct pin is a per-template band-aid so chloe-dong + every other
tenant stops hitting the 400 NOW. It costs 1 line per template and is
fully compatible with the eventual runtime-wheel fix — once mc#1578's
new wheel publishes and a `.runtime-version` cascade bumps each
template, this direct pin becomes redundant and harmless (transitive
dep already present in the wheel).

core-devops approved these changes 2026-05-20 03:12:30 +00:00

core-devops left a comment

Five-axis review (workflow-domain lens):

Diff scope: 1-line dep pin (python-multipart>=0.0.27) added to requirements.txt after the runtime pin. Matches mc#1578 SSOT (merged 2026-05-19T21:41Z, SHA 1278d57c).
CI gate: all required contexts GREEN.
Workflow impact: triggers publish-image.yml on main merge -> new ECR digest -> manual POST /cp/admin/runtime-image/promote per reference_codex_pin_no_autopromoter_exists.
Rollback: trivially reversible.
Cost vs. risk: 10 LOC band-aid prevents canvas-chat 400 across all tenants. P0.

APPROVE.

Five-axis review (workflow-domain lens): 1. Diff scope: 1-line dep pin (python-multipart>=0.0.27) added to requirements.txt after the runtime pin. Matches mc#1578 SSOT (merged 2026-05-19T21:41Z, SHA 1278d57c). 2. CI gate: all required contexts GREEN. 3. Workflow impact: triggers publish-image.yml on main merge -> new ECR digest -> manual POST /cp/admin/runtime-image/promote per reference_codex_pin_no_autopromoter_exists. 4. Rollback: trivially reversible. 5. Cost vs. risk: 10 LOC band-aid prevents canvas-chat 400 across all tenants. P0. APPROVE.

core-security approved these changes 2026-05-20 03:12:31 +00:00

core-security left a comment

Five-axis review (security-surface lens):

Single dep pin against well-known PyPI package python-multipart >=0.0.27 — matches Dependabot pin from workspace/requirements.txt per mc#1578.
No secret-surface, auth, or token wiring touched.
No new code paths; resolves an existing implicit Starlette dep.
Provenance: matches already-merged mc#1578 SSOT exactly.
Reversibility: 1-line revert.

APPROVE.

Five-axis review (security-surface lens): 1. Single dep pin against well-known PyPI package python-multipart >=0.0.27 — matches Dependabot pin from workspace/requirements.txt per mc#1578. 2. No secret-surface, auth, or token wiring touched. 3. No new code paths; resolves an existing implicit Starlette dep. 4. Provenance: matches already-merged mc#1578 SSOT exactly. 5. Reversibility: 1-line revert. APPROVE.

devops-engineer merged commit 1331780794 into main

2026-05-20 03:12:33 +00:00

devops-engineer deleted branch fix/python-multipart-pin-task-256

2026-05-20 03:12:33 +00:00

devops-engineer referenced this issue from a commit

2026-05-20 03:12:35 +00:00

Merge pull request 'fix(deps): pin python-multipart>=0.0.27 (P0 canvas upload band-aid; task #256)' (#35) from fix/python-multipart-pin-task-256 into main

core-be referenced this issue from a commit

2026-06-03 03:36:03 +00:00

Merge pull request #35 from Molecule-AI/fix/test-stub-add-new-response-message

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