feat: add Reasonix agent and edit diff previews#37
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Reasonix (https://github.com/esengine/DeepSeek-Reasonix) is a DeepSeek-native coding agent with a cache-first loop architecture. It exposes `reasonix acp` as a stdio ACP entry point, matching the same pattern as Kiro CLI and Hermes Agent (direct binary invocation, not an npx package). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Before overwriting, read the old file content. After writing, open a vscode.diff editor comparing old (temp file) vs new content so users can review changes inline instead of just seeing the final state. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Many ACP agents (including Reasonix) write files directly via Node.js fs rather than calling the client's writeTextFile. This adds a DiffPreviewHandler that listens for session/update notifications, caches old file content when an edit-kind tool call starts, and opens a vscode.diff view when it completes. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
Adds Reasonix as a pre-configured ACP agent and improves file-edit visibility for agents that edit files through their own tools.
Reasonix is a DeepSeek-native coding agent. It exposes
reasonix acpover stdio NDJSON JSON-RPC, matching the same direct-binary integration pattern as Kiro CLI and Hermes Agent.command = "reasonix"args = ["acp"]Why
Reasonix users currently have to configure the agent manually in
settings.json. A pre-configured entry makes it discoverable and reduces setup friction.While testing Reasonix through ACP, I also found that some agents write files directly through their own tooling instead of calling the client's
writeTextFilemethod. The client therefore needs to follow ACPtool_call/tool_call_updatenotifications to show the user which files are being edited and to open a final diff.Changes
Reasonixtoacp.agentsdefaults inpackage.jsonREADME.mdCHANGELOG.mdentry under UnreleasedDiffPreviewHandlerfor edit-kind tool callsparams.updatetoolCallIdstate across incrementaltool_call_updatepayloadslocations, diff content, raw tool input, and title fallbackValidation
reasonix acpspawns successfully via vscode-acptool_call/tool_call_updatenotifications from Reasonixnpm run compile-tests -- --pretty falsenpm run lintnpm run compileCompatibility
reasonixto be on PATH (brew install reasonixor install from GitHub Releases).🤖 Generated with Claude Code