What is Claude Code KAIROS?

KAIROS is an unreleased always-on background daemon found in Claude Code v2.1.88 source code. It is designed to monitor your codebase continuously and proactively surface relevant information without you asking. The name KAIROS comes from the Greek concept of the opportune moment.

What is Claude Code Buddy?

Buddy is an unreleased companion agent found in Claude Code v2.1.88 source via compile-time feature flags. It appears designed to act as a persistent assistant that maintains context across sessions, remembers your preferences, and proactively helps with recurring tasks.

What is Claude Code Ultraplan?

Ultraplan is an unreleased planning mode found in Claude Code v2.1.88. Unlike the standard planning mode, Ultraplan appears to generate architecture-level plans before writing any code, creating a detailed technical specification that the agent then executes step by step.

How were these unreleased Claude Code features discovered?

The unreleased features were discovered through analysis of compile-time feature flags in the Claude Code v2.1.88 source code, which became accessible via npm source maps on March 31, 2026. The features exist as dead code behind flags like KAIROS_ENABLED, BUDDY_MODE, ULTRAPLAN, and similar constants.

Chapter 06 — Final Chapter

Unreleased Features & What's Coming

Eight features hiding inside v2.1.88, gated behind compile-time flags. None are publicly documented. Some will ship. Some won't. Here's what the source code says.

Sources: kairos/, buddy/, planning/, proactive/, torch/, recordings/, remote/

How we found these

When npm packages ship with source maps, the original TypeScript source is embedded in the .js.map files alongside the compiled JavaScript. On March 31, 2026, Claude Code v2.1.88 shipped with source maps intact — exposing 512,000+ lines of TypeScript.

These unreleased features were found by scanning for three patterns:

Compile-time flags — env vars like CLAUDE_CODE_ENABLE_* checked with process.env["FEATURE_FLAG"]

Dead code paths — Fully implemented modules imported in index files but never exported to users

Config references — Settings schema entries with no corresponding UI, and JSON keys with no documentation

Likely to Ship

Possible

Early / Stub

KAIROS runs Claude Code as a persistent daemon. It monitors your filesystem using chokidar/fs.watch and can respond to save events, failing tests, and CI notifications automatically — without you typing anything. Think of it as turning Claude Code from a chatbot into an ambient coding assistant that stays on in the background.

What it would mean for you

“You save a file with a bug. Before you switch back to your terminal, KAIROS has already spotted it and queued a suggested fix. No prompt required.”

Code Readiness82%

Source references

kairos/KairosDaemon.tskairos/FileWatcher.tskairos/EventDispatcher.ts

Maturity Overview

Based on code coverage, stub ratio, and integration completeness in the v2.1.88 source.

KAIROS

Likely to Ship82%

Multi-Agent Teams

Likely to Ship74%

Buddy

Possible61%

Ultraplan

Possible55%

Torch

Possible47%

Workflow Recordings

Early / Stub35%

Remote Execution

Early / Stub31%

Proactive Daemon

Early / Stub28%

End of Series

You have read all 6 chapters

From the core agentic loop to features that have not shipped yet — you now know more about Claude Code internals than most people at Anthropic would expect an outsider to know.

Back to Series Index

Disclaimer

All features on this page are unreleased and not publicly documented by Anthropic. They were found via source code analysis of v2.1.88. Feature flags and internal module names may change or disappear. These features may never ship. This is an educational analysis — not a roadmap commitment from Anthropic.