Files
claude-hidden-toolkit/tool-catalog/hidden-tools/conversation-tools.md
T
DMontgomery40 efbb13827b Add tool-catalog: 24 hidden tools from desktop app binary analysis
Documents 24 tools found in Claude.app binary (app.asar/index.js) that are
not listed in the deferred tools system-reminder. Organized into 7 categories:

- Widget Tools (2): inline SVG/HTML rendering via @ant/imagine-server
- Preview Tools (13): dev server and browser preview in code tasks
- Computer Use (1, 13 actions): desktop automation via screenshot-then-act
- Terminal & Roots (2): IDE-plugin-only terminal reader and MCP roots
- Office Add-in (5): Excel/Word/PowerPoint integration via Claude add-in
- Conversation (1): internal compaction service, not user-callable
- Feature Flags & Codenames: flags, codenames, Swift APIs, config keys

Each tool includes verification status (CONFIRMED/NOT FOUND/UNTESTED),
parameter schemas, and session-type availability matrix.

Tone cleanup: removed speculative language per CLAUDE.md style guide.
States facts from binary analysis, marks unverified claims explicitly.
2026-03-19 19:27:18 -06:00

2.0 KiB

Conversation Tools (1 tool)

Status: Internal only — not callable by users or the assistant. This tool is constructed dynamically by the compaction service and sent to the Anthropic API as part of a separate API call. It is never registered as an MCP tool or deferred tool. This is correct behavior — it is not intended to be user-callable.

Verified: 2026-03-19. Not callable from Dispatch, Cowork tasks, code tasks, or Claude Code CLI.


summarize_conversation

Used by the compaction service to create structured summaries when a conversation exceeds context limits.

Parameters

Param Type Required Description
summary string yes The conversation summary text
entities array of strings no Key entities mentioned in the conversation
next_action string no Description of the next action to take

How it works

This tool is not called by the user or the assistant directly. It is used internally:

  1. The compaction service detects when messages exceed a threshold
  2. It calls the Anthropic API with the conversation history
  3. The API uses this tool to return a structured summary
  4. The summary replaces the old messages, preserving context

Configuration

The tool's descriptions are configured server-side via a config object with fields:

  • toolDescription — the tool's own description
  • summaryDescription / summary_description
  • entitiesDescription / entities_description
  • nextActionDescription / next_action_description
  • userPromptTemplate / user_prompt_template

Notes

  • Uses anthropic-beta header when calling the API
  • Requires an active API token (from OAuth flow)
  • The tool definition is constructed dynamically from server config, not hardcoded
  • There is an internal counter WV (starts at 0) that may track compaction count
  • Will silently return null if: messages are empty/too few, no API token, or config is missing
  • Uses maxRetries: 2 for the API call