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JetBrains Codex Agent

This guide uses LyraShield's integration registry for the ide surface. It shows the current setup strategy and client source; actual client loading and authenticated runtime acceptance are tracked separately below.

Connection setup

The registry's setup path for this client is Guided manual setup over local stdio.

Client activation instructions

Configure the local stdio MCP server in JetBrains AI Assistant → Settings → Tools → Model Context Protocol, then enable Pass custom MCP servers in the Agents settings before selecting Codex. Install project skills under .codex/skills or import them through AI Assistant. Provider login and MCP-server authentication are separate steps.

Install type: No verified native MCP configuration is available for this client.
Configure the local stdio MCP server in JetBrains AI Assistant → Settings → Tools → Model Context Protocol, then enable Pass custom MCP servers in the Agents settings before selecting Codex. Install project skills under .codex/skills or import them through AI Assistant. Provider login and MCP-server authentication are separate steps.
Manual setup: the pinned CLI package (lyrashield@0.2.14) has no matching installer contract for this integration. Use the configuration or client instructions above and verify the client loads it.

Important gotchas

  • Codex skills and AGENTS.md are supported in the embedded agent. MCP servers configured in AI Assistant are not exposed until Pass custom MCP servers is enabled.
  • The embedded Codex provider login is separate from the LyraShield MCP connection; use local stdio credentials for this guided setup.
Local access: run npx -y lyrashield@0.2.14 login --oauth to select a workspace for local stdio, or use a scoped workspace API key in an appropriate private environment. Never commit credentials.

Native components and distribution

Documented client capabilities: skills. These describe what the client can load; use the installer and distribution details below to see which LyraShield components are available for this surface.

Install shared LyraShield skills

The pinned CLI includes a skills installer for this client. Preview its file changes first, then run the install command. Existing files that are not LyraShield-owned, or have been customized, are preserved.

npx -y lyrashield@0.2.14 skills install jetbrains-codex-agent --project --dry-run
npx -y lyrashield@0.2.14 skills install jetbrains-codex-agent --project

Restart or reload the client and verify its skill list. Local files do not prove discovery, authentication, marketplace listing or runtime acceptance.

Distribution route: JetBrains AI Assistant hosted Codex agent; registry state DIRECT. Client distribution documentation.

Support evidence

Registry tier: COMPATIBLE. Evidence: DOCUMENTATION, checked 2026-10-01. Client version: not recorded; tested platforms: not recorded. No client runtime receipt is recorded.Marketplace state and runtime compatibility are separate claims.

Source: JetBrains Codex Agent official documentation.