Add plugin entry: agent-plugins

[patleeman]

What the plugin does

Agent Plugins installs packages that follow the Agent Plugins spec once in BB, materializes their skills for agent sessions, and routes approved MCP tools to Codex and other BB providers. The release adds independent enable/disable controls for each discovered skill and MCP server. It is not a Claude marketplace integration.

Source release

• Repository: https://github.com/patleeman/bb-plugins.git
• Plugin subdirectory: packages/bb-plugin-agent-plugins
• Release: agent-plugins/v0.1.0
• Selected source range: ^0.1.0

Plugin checks

• 33 focused tests passed
• TypeScript typecheck passed
• BB plugin build passed
• BB SDK compatibility check passed
• npm pack --dry-run contains the runtime bundles, metadata, manifest, and schemas
• Live BB reload and per-resource toggle checks passed

Marketplace checks

• npm ci --ignore-scripts passed
• npm run build passed
• npm run check passed, including public Git release liveness
• Entry ID, source subdirectory, release tag prefix, and host icon validated against the current marketplace schema

Permissions and security

The plugin reads plugin sources and stores installed plugin data under BB-managed storage. Skills are materialized only when enabled. MCP servers remain approval-gated; enabled stdio servers run user-selected plugin commands, and supported local HTTP configuration is validated before use. Sensitive MCP environment and header values are redacted from the settings snapshot.