chore!: rename a2claude → a2acode (vendor-neutral)

[kanywst]

Stacked on #18.

Why

After #18 the project fronts any ACP coding agent over A2A, not just Claude. The a2claude name (A2A + Claude) now actively misleads — it signals a Claude lock-in that the whole pivot removes. Renaming is cheapest now, at v0.3.0 with minimal adoption, and the name is load-bearing for discovery once vendor-neutrality is the pitch.

a2acode = A2A + code: anchors on the protocol callers actually speak (A2A), signals "coding agent", drops the Claude lock, and keeps the a2* lineage so anyone who saw a2claude connects the two. The ACP half lives in the tagline: any ACP coding agent → any A2A caller.

What changed

Pure rename, no behavior change beyond identifiers:

• Distribution + import name a2claude → a2acode (src/a2claude/ → src/a2acode/, all imports).
• CLI command a2claude → a2acode ([project.scripts]).
• OpenTelemetry span/attribute names (a2claude.execute, a2claude.backend, a2claude_permission) and tracer name.
• Repository URL, README/CLAUDE badges, command examples, and the demo tape.
• uv.lock regenerated.

Breaking

Import and CLI names change. Installs, imports, and any a2claude ... scripts must update to a2acode.

Manual follow-ups (not code)

• Rename the GitHub repo kanywst/a2claude → kanywst/a2acode (GitHub redirects the old URL).
• Register/publish the a2acode project on PyPI (the old a2claude name stays a tombstone).
• Update the dev.to article link if desired.

Verification

ruff check, ruff format --check, mypy, pytest (55 passed), markdownlint-cli2, uv build (produces a2acode-0.3.0), and uv sync --locked all green. CLI verified under the new name.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 5bfa934f-3e50-4f77-bb8c-19d3c6975a62

📥 Commits

Reviewing files that changed from the base of the PR and between 66e609a and 51f3810.

⛔ Files ignored due to path filters (1)

• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (27)

• CLAUDE.md
• README.md
• assets/demo.tape
• pyproject.toml
• src/a2acode/__init__.py
• src/a2acode/auth.py
• src/a2acode/backends/__init__.py
• src/a2acode/backends/acp.py
• src/a2acode/backends/base.py
• src/a2acode/backends/claude.py
• src/a2acode/backends/diff.py
• src/a2acode/backends/echo.py
• src/a2acode/backends/session.py
• src/a2acode/card.py
• src/a2acode/cli.py
• src/a2acode/executor.py
• src/a2acode/py.typed
• src/a2acode/server.py
• src/a2acode/tracing.py
• tests/test_acp.py
• tests/test_auth.py
• tests/test_claude_backend.py
• tests/test_cli.py
• tests/test_executor.py
• tests/test_signing.py
• tests/test_smoke.py
• tests/test_tracing.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/rename-to-a2acode

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[gemini-code-assist]

Code Review

This pull request renames the project from a2claude to a2acode across the entire codebase, updating references in documentation, package configuration, source files, and test suites. I have no feedback to provide.

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