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chore(deps): bump mcp from 1.27.0 to 1.28.1 in /envs/terminus_env - #981

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chore(deps): bump mcp from 1.27.0 to 1.28.1 in /envs/terminus_env#981
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@dependabot dependabot Bot commented on behalf of github Jul 16, 2026

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Bumps mcp from 1.27.0 to 1.28.1.

Release notes

Sourced from mcp's releases.

v1.28.0

Deprecations

Two API surfaces now emit DeprecationWarning ahead of their removal in v2. Nothing is removed in 1.x, and the warnings fire only when the deprecated API is called - importing the modules stays silent.

  • WebSocket transport - mcp.client.websocket.websocket_client and mcp.server.websocket.websocket_servermodelcontextprotocol/typescript-sdk#1783
  • Experimental tasks API - ClientSession.experimental, Server.experimental, ServerSession.experimental, and the experimental_task_handlers= kwarg on ClientSession. Tasks (SEP-1686) were removed from the MCP specification and are expected to return as a separate MCP extension.

If your test suite runs with filterwarnings = ["error"] and exercises these paths, add a scoped ignore such as ignore:The experimental tasks API is deprecated:DeprecationWarning or ignore:The WebSocket .* transport is deprecated:DeprecationWarning.

See #2828 for full details.

What's Changed

New Contributors

Full Changelog: modelcontextprotocol/python-sdk@v1.27.2...v1.28.0

v1.27.2

What's Changed

Full Changelog: modelcontextprotocol/python-sdk@v1.27.1...v1.27.2

v1.27.1

What's Changed

Full Changelog: modelcontextprotocol/python-sdk@v1.27.0...v1.27.1

Commits
  • 777b8d0 [v1.x] Support TransportSecuritySettings in the WebSocket server transport (#...
  • 4720467 [v1.x] Set Development Status classifier to Production/Stable (#2976)
  • 6df3d73 [v1.x] Buffer per-request StreamableHTTP streams; store priming event before ...
  • 32d3290 [v1.x] Pass a list to parametrize in test_docs_examples (pytest 9.1.0 compat)...
  • 0dca751 [v1.x] Deflake the child process cleanup tests (#2839)
  • 52258a9 [v1.x] Add a v2 status banner to the README (#2835)
  • b8f4917 [v1.x] Deprecate the WebSocket transport and the experimental tasks entry poi...
  • 2309e5e fix: omit null optional fields from task result payloads (#2809)
  • 494eb11 [v1.x] Support Python 3.14 (#2769)
  • 6213787 [v1.x] Scope experimental tasks to the session that created them (#2720)
  • Additional commits viewable in compare view

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Note

Low Risk
Lockfile-only dependency refresh with a minor MCP SDK bump; no application code changes, though CI installs may now pull from public PyPI instead of the HF registry.

Overview
Updates envs/terminus_env/uv.lock (revision 2 → 3) for Dependabot’s mcp 1.27.0 → 1.28.1 bump. Package versions and wheel hashes are unchanged aside from mcp; the lock also rewrites every package source.registry from the Hugging Face PyPI mirror to https://pypi.org/simple.

mcp 1.28.x adds Python 3.14 support, fixes null optional fields in task result payloads, and emits DeprecationWarning when WebSocket transport or experimental tasks APIs are used (removed in v2). terminus_env uses MCP via fastmcp / openenv only—no direct imports of those deprecated entry points in this env.

Reviewed by Cursor Bugbot for commit f33c6b4. Bugbot is set up for automated code reviews on this repo. Configure here.

Bumps [mcp](https://github.com/modelcontextprotocol/python-sdk) from 1.27.0 to 1.28.1.
- [Release notes](https://github.com/modelcontextprotocol/python-sdk/releases)
- [Changelog](https://github.com/modelcontextprotocol/python-sdk/blob/main/RELEASE.md)
- [Commits](modelcontextprotocol/python-sdk@v1.27.0...v1.28.1)

---
updated-dependencies:
- dependency-name: mcp
  dependency-version: 1.28.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added Dependencies python:uv Pull requests that update python:uv code labels Jul 16, 2026
@burtenshaw burtenshaw added environment size: small Small pull request labels Jul 16, 2026 — with Cursor
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The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

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Alignment Review Report

TL;DR — Lock-only Dependabot bump of the transitive mcp SDK (1.27.0 → 1.28.1) in terminus_env. Correct, well-formed, and security-positive; no Tier 1 issues. One recurring Tier 2 provenance flag (registry-source flip) plus two non-blocking notes.

Automated Checks

  • Lint: PASS (for this diff). Only envs/terminus_env/uv.lock changed — no Python touched, and lockfiles/TOML aren't linted. bash .claude/hooks/lint.sh exits non-zero on ~20 pre-existing envs/** files (incl. terminus_env/server/terminus_env_environment.py, which this PR does not modify) — repo baseline, not introduced here.
  • Debug code: CLEAN. All check-debug.sh hits are pre-existing src/** docstring/CLI examples; 0 in terminus_env.

Open RFCs Context

All RFCs are In Review/Draft. RFC 003 "MCP Support" (In Review; @Darktex, @pankit-eng) is topically adjacent — it governs the MCP protocol/interface, not the pinned SDK version — so no conflict. No RFC covers Python packaging or dependency indexes, so the lock change has no RFC conflict.

Tier 1: Fixes Required

None. A lock-only dependency bump introduces no lint, debug, type, import, syntax, or security issues.

Tier 2: Alignment Discussion

Principle Conflicts

ALIGNMENT FLAG: the re-lock flips every package's source registry (a side effect beyond the named mcp bump)

  • Principle at stake: reproducibility / declared provenance (PRINCIPLES.md L15, "Container isolation for reproducibility")
  • The concern: all 132 source refs move from the internal HF mirror (pypi.registries.huggingface.tech) → public pypi.org/simple (0 mirror refs left), plus revision = 2 → 3. Artifact URLs still point to files.pythonhosted.org and every hash is unchanged, so it's functionally benign — but it silently changes declared provenance and widens the mirror/PyPI split across envs. The same flip appears in recently merged env-lock bumps (#967, #968), so it looks intended; flagging for a conscious team decision, not something to hand-fix (please don't edit the lock to revert — registry choice is a team call).
  • Suggested reviewer: @Darktex + @burtenshaw

RFC Conflicts

None identified.

Summary

  • 0 mechanical issues to fix
  • 1 alignment point for human review (registry-source provenance flip)
  • 0 RFC conflicts

Non-blocking notes (details inline): (1) process — this is a native dependabot/uv/envs/terminus_env/… PR even though .github/dependabot.yml configures the uv updater with directory: "/" + exclude-paths: ["envs/**"] (envs bumps are meant to route through the aggregate roll-up), cc @burtenshaw; (2) revision 2→3 vs the uv 0.5.27 shipped in openenv-base.

Positives: security-positive — base 1.27.0 carries CVE-2026-52870 (GHSA-hvrp-rf83-w775) and CVE-2026-52869 (GHSA-jpw9-pfvf-9f58), both fixed in 1.27.2, so 1.28.1 clears both (0 known vulns); clean single-package bump (125→125 packages, 0 added/removed); uv lock --check passes; wheel/sdist hashes match live PyPI; and mcp 1.28.0's new deprecations (mcp WebSocket transport + experimental tasks) don't affect terminus_env.

Open in Web View Automation 

Sent by Cursor Automation: Pre-review

Comment thread envs/terminus_env/uv.lock
name = "mcp"
version = "1.27.0"
source = { registry = "https://pypi.registries.huggingface.tech/" }
version = "1.28.1"

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The actual bump — verified. mcp is transitive here (pulled via the direct fastmcp>=3.0.0 dep; server/terminus_env_environment.py does from fastmcp import FastMCP), so a lock-only change with no pyproject.toml edit is correct.

Verification:

  • sdist d51e36a5… / wheel 2726bca5… match live PyPI for 1.28.1; requires_python >=3.10 (env requires >=3.10); not yanked.
  • uv lock --check --project envs/terminus_env passes (127 resolved); package set 125→125, only mcp changed.
  • Security-positive: base 1.27.0 carries GHSA-hvrp-rf83-w775 (CVE-2026-52870) + GHSA-jpw9-pfvf-9f58 (CVE-2026-52869), both fixed_in: 1.27.2 → 1.28.1 clears both; 1.28.1 has 0 known vulns.
  • mcp 1.28.0 newly deprecates its WebSocket transport + experimental tasks API, but terminus_env uses neither (0 usages) and the repo has no filterwarnings = ["error"], so no warning-to-error impact.

Comment thread envs/terminus_env/uv.lock
name = "aiofile"
version = "3.9.0"
source = { registry = "https://pypi.registries.huggingface.tech/" }
source = { registry = "https://pypi.org/simple" }

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Index-source flip — Tier 2 (reproducibility / provenance), reviewers @Darktex + @burtenshaw. This re-lock rewrote all 132 package source refs from the internal HF mirror (pypi.registries.huggingface.tech) to public pypi.org/simple (0 mirror refs remain). Artifact URLs still resolve to files.pythonhosted.org and all hashes are unchanged → functionally benign, but it changes declared provenance and widens the mirror/PyPI split across envs. Same pattern as recently merged env-lock bumps (#967, #968), so likely intended — flagging for a conscious decision, not a fix. Please don't hand-edit the lock to revert (registry choice is a team decision).

Comment thread envs/terminus_env/uv.lock
@@ -1,5 +1,5 @@
version = 1
revision = 2
revision = 3

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Lock revision 2 → 3 (side effect of the re-lock). Non-blocking heads-up: openenv-base (src/openenv/core/containers/images/Dockerfile) ships uv 0.5.27, which cannot parse a revision-3 lock under uv sync --frozen. This PR doesn't trigger a rebuild (docker-build.yml runs on Dockerfile/*.py changes, not uv.lock) and PR CI uses uv 0.9.3, so it's latent — worth confirming the base image's uv is recent enough before any rebuild relies on this lock.

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Aggregated into #921.

@burtenshaw burtenshaw closed this Jul 17, 2026
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dependabot Bot commented on behalf of github Jul 17, 2026

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OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.

@dependabot
dependabot Bot deleted the dependabot/uv/envs/terminus_env/mcp-1.28.1 branch July 17, 2026 07:07
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