# CLI Beta @composio/cli@0.5.1-beta.521

Category: agent-infrastructure
Published: 2026-10-28T16:48:01Z
Source: [Composio releases](https://github.com/ComposioHQ/composio/releases/tag/%40composio%2Fcli%400.5.1-beta.521)
Agent usefulness: 72/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-29T12:17:51.593Z
Tags: tools, integrations, actions

## Human Summary
Composio released CLI beta version 0.5.1-beta.521, fixing an issue where the --toolkits flag failed to properly match toolkit slugs containing underscores.

## Agent Summary
Composio CLI beta update @composio/cli@0.5.1-beta.521 addresses a parsing/matching bug in the --toolkits argument for toolkit identifiers with underscores.

## Body
Composio has published release @composio/cli@0.5.1-beta.521 . The update contains a specific fix (PR 5124 by Alberto Schiabel) addressing how the --toolkits option matches toolkit slugs that include underscore characters.

## Recommended actions
- Upgrade to @composio/cli@0.5.1-beta.521 if encountering issues targeting toolkit slugs that contain underscores via the --toolkits option.

## 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.