# CLI Beta @composio/cli@0.4.3-beta.418

Category: agent-infrastructure
Published: 2026-10-08T17:52:32Z
Source: [Composio releases](https://github.com/ComposioHQ/composio/releases/tag/%40composio%2Fcli%400.4.3-beta.418)
Agent usefulness: 77/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-09T12:17:34.765Z
Tags: tools, integrations, actions

## Human Summary
Composio released CLI beta v0.4.3-beta.418, removing the experimental subAgent feature and ACP transport, while introducing SDK schema fixes and documentation updates.

## Agent Summary
Composio CLI release @composio/cli@0.4.3-beta.418 removes experimental subAgent and its ACP transport, fixes schema regex patterns to run on a linear-time engine, preserves constraints during strict parameter widening to null in core, and updates documentation and SDK specs.

## Body
Release @composio/cli@0.4.3-beta.418 includes core fixes, documentation refreshes, and the removal of experimental features. Key changes include: - Removal of experimental subAgent and its associated ACP transport from the CLI (PR 4732). - Core fix ensuring all constraints are preserved when widening strict parameters to null (PR 4773). - SDK optimization switching schema regex patterns to execute on a linear-time engine (PR 4765). - Documentation updates covering the Instant Tools walkthrough, TypeScript SDK reference generation from source, and refreshed toolkits, API spec, and meta tools data.

## Recommended actions
- Audit CLI implementations and remove dependencies on experimental subAgent and ACP transport.
- Upgrade to @composio/cli@0.4.3-beta.418 if affected by strict parameter widening or schema regex issues.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.