claude-code-2026-04-02/docs-site/docs/reproducibility.md

Reproducibility and limits

!!! warning "You cannot rebuild the shipping CLI from this tree alone" This folder is a source reconstruction, not a complete open-source project drop.

What is missing for a full build

1. No root package.json
   The published npm package bundles dependencies internally. This repo does not declare versions or scripts to reproduce that bundle.

2. Bun-specific build features
   The entry module uses bun:bundle APIs such as feature('KAIROS'), feature('COORDINATOR_MODE'), feature('VOICE_MODE'), etc. Those are compile-time gates in Anthropic’s internal bundling pipeline, not something you can flip in a stock TypeScript compile.

3. Private or unpublished packages
   Imports may reference packages or paths that exist only inside Anthropic’s build graph.

4. Native addons
   Some flows (keychain, protocol handlers, optional NAPI modules) assume native binaries shipped beside the real claude executable.

What you can do with this tree

• Read and trace control flow: main.tsx → REPL or cli/print.ts → query.ts / QueryEngine.ts → services/api → tools.
• Compare behavior to the public CLI reference and how Claude Code works.
• Study MCP, permissions, compaction, hooks, and IDE bridge code against official feature docs.

“Infrastructure” in the sense of this codebase

There is no separate microservice repo here: the CLI is a single process (plus child processes for bash, MCP servers, etc.) that talks to Anthropic’s cloud APIs and optional MCP servers over stdio/WebSocket. Enterprise features (remote-managed settings, policy limits, OAuth) are implemented as client-side modules under src/services/ and src/utils/settings/, not as deployable server code in this tree.

Legal

Rebuilding or redistributing the product for end users is outside the scope of these docs and may infringe Anthropic’s rights. Use this material for analysis only unless you have explicit permission.