chore(deps): bump strands-agents pin to >=1.51.0 - #4
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arielnabavian wants to merge 1 commit into
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The pre-1.51 SDK exports the sandbox-routed shell tool as `bash` and does not expose `shell` at all. strands-agents/harness-sdk#3574 (merged 2026-07-31, released as 1.51.0 on 2026-08-07) renamed the tool: the public export is now `shell`, with `bash` kept as a deprecated alias in `vended_tools.__init__.__getattr__` only. Stan updated its default builtin_tools list to `"shell"` (awsarron/stan#6, strands-agents/stan#2). On an orchestrator whose venv was built with the old pin, `from strands.vended_tools import shell` now fails at import time, which crashes `run-benchmark.sh` before any fleet instance launches. Fix: bump the floor in pyproject.toml so a fresh install of strands-agents-evals gets an SDK with the shell rename. Existing orchestrator venvs need one-time `pip install --upgrade strands-agents`; new orchestrators pick it up automatically. Verified: 1.51.0 exports `shell` at module top level and keeps `bash` as the deprecation-warning-emitting alias, so this bump has no other observable effect on consumers of the pre-rename API.
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Summary
The pre-1.51 SDK exports the sandbox-routed shell tool as
bashand does not exposeshellat all. strands-agents/harness-sdk#3574 (merged 2026-07-31, released as 1.51.0 on 2026-08-07) renamed the tool: the public export is nowshell, withbashkept as a deprecated alias invended_tools.__init__.__getattr__only.Stan updated its default
builtin_toolslist to\"shell\"(awsarron/stan#6, strands-agents/stan#2). On an orchestrator whose venv was built with the old pin,from strands.vended_tools import shellnow fails at import time, which crashesrun-benchmark.shbefore any fleet instance launches.Fix
Bump the floor in
pyproject.toml:New orchestrators pick this up automatically on
pip install. Existing orchestrators need a one-timepip install --upgrade 'strands-agents>=1.51.0'since>=1.42.0still resolves the older installed version.Verified
curl https://pypi.org/pypi/strands-agents/json—latest = 1.51.0, published 2026-08-07.from strands.vended_tools import shellsucceeds on 1.51.0 (the export exists at module top level).from strands.vended_tools import bashstill works on 1.51.0 (via the__getattr__deprecation-warning shim), so pre-rename consumers keep working.Failure observed
Live orchestrator, 2026-08-12:
Post-bump +
pip install --upgradeon the live orchestrator recovers the run.