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agent-shell-contract v0.2.0

This release packages the verified Windows reference-adapter support added after the initial public release.

Included

  • Windows process-tree termination through taskkill /PID <pid> /T /F for the reference adapter.
  • Windows-safe encoded fixture commands that preserve embedded quotes.
  • windows-latest CI coverage for Python 3.10, 3.11, and 3.12, with all nine reference fixtures passing.
  • Actionable compatibility errors and bounded documentation for the experimental Codex app-server adapter.

Validation

  • Corrective Windows matrix run 30435210271: all nine matrix jobs passed.
  • Optional-adapter smoke run 30435595844: passed.
  • This release's package version is 0.2.0; the Windows claim remains limited to the reference adapter and tested GitHub Actions runners.

Limitations

The Codex app-server adapter remains experimental and version-sensitive. Windows behavior is not claimed for other adapters or client products.

agent-shell-contract v0.1.0

Initial public release of agent-shell-contract.

Included

  • Local CLI for coding-agent shell-runner contract fixtures.
  • Reference subprocess adapter.
  • Optional Pydantic AI Harness adapter.
  • Optional ACP local terminal adapter using official agent-client-protocol schema models.
  • Experimental Codex app-server adapter for direct command/exec shell validation without model calls.
  • Nine issue-derived fixtures covering timeout behavior, process-tree cleanup, background server lifecycle, output preservation, cwd isolation, env boundary, PTY declaration, and Windows termination.
  • Terminal, JSON, and Markdown reports.
  • Safety, discoverability, validation, and benchmark documentation.

Known Findings

  • Pydantic AI Harness validation produced an actionable output-after-kill failure: timeout returns promptly but does not include bounded pre-timeout stdout/stderr in the timeout result.
  • Codex app-server validation passed 8 non-Windows fixtures locally on Codex CLI 0.133.0; app-server remains experimental.
  • ACP local terminal validation passed 8 non-Windows fixtures locally using the official Python schema package; this validates adapter shape, not a specific ACP client product.
  • Windows process-tree behavior is covered by the reference adapter in CI run 30435210271 across Python 3.10, 3.11, and 3.12 on windows-latest.
  • Codex app-server validation depends on an experimental local Codex CLI API.

Limitations

This is not a process manager, sandbox, model benchmark, or automatic fixer. The ACP adapter validates protocol shape with a local terminal client; it is not a pass claim for a specific ACP client.