fix: wire CLAUDE_CODE_EXECUTABLE so adapter uses pinned claude-code

[chaodu-agent]

Summary

Set ENV CLAUDE_CODE_EXECUTABLE=/usr/local/bin/claude in Dockerfile.claude so claude-agent-acp actually uses the globally installed (and version-pinned) @anthropic-ai/claude-code binary instead of its own bundled SDK cli.js.

Problem

As documented in #418, claude-agent-acp never invokes the globally installed /usr/local/bin/claude. The adapter resolves its CLI path via claudeCliPath() which, for non-static npm installs, always falls through to the SDK-bundled cli.js. This means:

• CLAUDE_CODE_VERSION=2.1.104 pinning in the Dockerfile has no effect on what actually runs in sessions
• PR fix: revert claude-code to 2.1.104 due to upstream auth regression #333 (revert to 2.1.104) and PR fix: bump CLI versions — codex 0.121.0, gemini 0.38.1, copilot 1.0.30, cursor 2026.04.15 #412 (stay on 2.1.104) were based on a false premise — the adapter never ran the global binary

Fix

The adapter checks CLAUDE_CODE_EXECUTABLE env var first (since claude-agent-acp@0.6.0). Setting it to /usr/local/bin/claude makes the pinned version load-bearing.

Changes

-# Install claude-agent-acp adapter and Claude Code CLI
+# Install claude-agent-acp adapter and Claude Code CLI.
+# Without CLAUDE_CODE_EXECUTABLE the adapter uses its own bundled SDK cli.js,
+# ignoring the globally installed claude-code binary (see #418).
 ARG CLAUDE_CODE_VERSION=2.1.104
 RUN npm install -g @agentclientprotocol/claude-agent-acp@0.25.0 @anthropic-ai/claude-code@${CLAUDE_CODE_VERSION} --retry 3
+ENV CLAUDE_CODE_EXECUTABLE=/usr/local/bin/claude

How to verify

docker build -f Dockerfile.claude -t openab-claude:test .
docker run --rm --entrypoint sh openab-claude:test -c '
  echo "CLAUDE_CODE_EXECUTABLE=$CLAUDE_CODE_EXECUTABLE"
  claude --version
'

Then confirm the adapter uses the global binary:

# In a running container with a session:
lsof -p $(pgrep -f claude-agent-acp) | grep cli.js
# Should show /usr/local/lib/node_modules/@anthropic-ai/claude-code/cli.js

Fixes #418

Discord Discussion URL: https://discord.com/channels/1490282656913559670/1495058349241405522

[thepagent]

✅ Validated locally

Built Dockerfile.claude on arm64 (OrbStack) and verified:

$ echo "CLAUDE_CODE_EXECUTABLE=$CLAUDE_CODE_EXECUTABLE"
CLAUDE_CODE_EXECUTABLE=/usr/local/bin/claude

$ ls -la $CLAUDE_CODE_EXECUTABLE
lrwxrwxrwx 1 root root 52 ... /usr/local/bin/claude -> ../lib/node_modules/@anthropic-ai/claude-code/cli.js

$ claude --version
2.1.104 (Claude Code)

$ which claude-agent-acp
/usr/local/bin/claude-agent-acp

Check	Result
CLAUDE_CODE_EXECUTABLE env set in image	✅ /usr/local/bin/claude
Binary exists and is correct version	✅ 2.1.104
claude-agent-acp installed	✅
Docker build clean	✅

LGTM 👍