Pre-submit Checks

• I have searched Warp feature requests and there are no duplicates
• I have searched Warp docs and my feature is not there

Describe the solution you'd like?

Add Mistral Vibe to Warp's list of recognized CLI agents so running vibe (interactive TUI) or vibe-acp (ACP-mode binary) in a Warp pane is detected as a known agent on par with Claude Code, Codex, Gemini CLI, OpenCode, etc.

Mistral Vibe is the open-source ACP-compatible CLI shipped by Mistral AI alongside Devstral 2 (Dec 2025). It is Apache 2.0 licensed, installable via uv tool install mistral-vibe or pip install mistral-vibe, and supports any OpenAI-compatible model endpoint — Mistral cloud (Devstral 2 / Devstral Small 2), vLLM, MLX, llama.cpp.

The change is purely additive and follows the existing pattern. Specifically, in app/src/terminal/cli_agent.rs:

• Add a Vibe variant to enum CLIAgent (around line 116).
• Complete the exhaustive matches that already enumerate the other agents:
  • command_prefix → "vibe" (the user-facing entry point; vibe-acp is an alternative the CLI also exposes).
  • display_name → "Mistral Vibe".
  • icon → a new Icon::MistralLogo (or initially None for a draft PR).
  • brand_color → Mistral's orange (e.g. #FA520F).
  • brand_icon_color → white.
  • supported_skill_providers → &[SkillProvider::Agents] to start; mistral-vibe also has a native skill loader (skill_paths in ~/.vibe/config.toml) which could become a dedicated SkillProvider::Vibe later.
  • supports_bash_mode → defaults to false; can be enabled in a follow-up.
• Add the brand color constant (e.g. MISTRAL_ORANGE) and the icon asset.
• Optionally: a minimal vibe.rs plugin manager in app/src/terminal/cli_agent_sessions/plugin_manager/ returning can_auto_install() = false and providing manual install instructions (uv tool install mistral-vibe). This is not required for basic recognition — is_installed() defaults to false in the trait — but it makes the install footer behave like the other agents.

No new protocol or transport code is needed: vibe-acp already speaks ACP, and vibe itself is a regular interactive terminal process that Warp's blocks/editor already wrap.

Is your feature request related to a problem? Please describe.

Today, vibe runs fine in a Warp pane but Warp doesn't recognize it as a CLI agent, so users miss out on:

• The CLI agent toolbar.
• The brand-colored icon in the harness selector.
• Skill-provider integration.
• Agent-mode session telemetry / session sharing.

Mistral's Dec 2025 Devstral 2 release (123B, SWE-bench Verified 72.2%) and Devstral Small 2 (24B, 68.0%) are competitive open-weight coding models, and Mistral Vibe is the maintained open-source CLI for them. Adding it to the recognized list brings open-weight coding agents into parity with the closed-source agents Warp already supports, which fits Warp's stated multi-model / multi-harness direction.

Additional context

Pointers from a brief read of the open-source repo on master at 2026-04-30:

• Central enum: app/src/terminal/cli_agent.rs:116 — enum CLIAgent with ~7 exhaustive matches that need new arms (the WARP.md rule against wildcard _ makes this mechanical but tedious; same shape as other agent additions like Auggie/CursorCli/Goose).
• Plugin manager pattern: app/src/terminal/cli_agent_sessions/plugin_manager/{claude,codex,gemini,opencode}.rs — straightforward to mirror.
• Estimated diff: ~10-15 additive lines + match-arm completion across ~7 sites + one icon SVG/PNG. Optional plugin_manager file would add ~30-50 lines.

Mistral Vibe / Devstral 2 references:

• Mistral Vibe on PyPI: https://pypi.org/project/mistral-vibe/
• Devstral 2 model card: https://docs.mistral.ai/models/devstral-2-25-12
• Devstral 2 announcement: https://mistral.ai/news/devstral-2-vibe-cli

Happy to draft the PR once this issue receives a ready-to-implement label, per CONTRIBUTING.md.

Operating system (OS)

macOS

How important is this feature to you?

3

Warp Internal (ignore) - linear-label:39cc6478-1249-4ee7-950b-c428edfeecd1

None