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Mistral Vibe: Skill-Creator for Building Custom Skills

Mistral VibeView original changelog

Mistral Vibe v2.23.2 introduced skill-creator, a new built-in skill that gives users a guided flow to author, update, and delete their own custom skills directly inside the CLI. Instead of hand-writing a SKILL.md file and frontmatter from scratch, users can now walk through an interactive process that produces a properly structured skill. The addition lowers the barrier to customizing Mistral Vibe and complements the tool's existing shared skills directory and slash-command skill system.

Key Takeaways

  • Mistral Vibe shipped a skill-creator built-in skill in v2.23.2, giving users a guided flow to author, update, and delete their own custom skills without hand-writing SKILL.md files.
  • The feature builds on Mistral Vibe's existing Agent Skills ecosystem, following the same specification used since the CLI's earliest skill support in January 2026.
  • Skill-creator complements the shared skills directory introduced in May 2026, making it easier to populate that directory with well-formed skills in the first place.
  • The guided flow reduces the barrier to customizing Mistral Vibe, letting non-experts turn repeatable prompts and workflows into reusable slash-command skills.
  • The same v2.23.2 release also fixed a long-standing bug where cached-token counts always reported as zero in session stats.
  • Mistral Vibe packaged its app-server protocol as a standalone vibe-app-server binary in this release, laying groundwork for tighter desktop and IDE integrations.

Skill-Creator: A Guided Flow for Building Skills

Mistral Vibe v2.23.2, released July 30, 2026, added skill-creator, a built-in skill that walks users through authoring, updating, and deleting their own custom skills. Rather than manually creating a SKILL.md file with the correct YAML frontmatter and instruction body, users can now invoke skill-creator and be guided through the process step by step.

Why It Matters

Skills are Mistral Vibe's mechanism for packaging repeatable workflows — deploy scripts, linting routines, documentation generators, and other recurring tasks — into reusable, invocable units that follow the open Agent Skills specification. Since Mistral Vibe first shipped slash-command skills in January 2026, the ecosystem has grown to include a builtin skills system with self-awareness (April 2026) and a shared skills directory for cross-agent reuse (May 2026). Skill-creator is the natural next step: it makes the authoring side of that ecosystem as approachable as the using side.

Previously, building a high-quality skill required understanding the frontmatter schema, the description field's role in automatic activation, and conventions around tool scoping. Skill-creator abstracts much of that away, generating a draft that can be reviewed and refined interactively, rather than requiring users to consult documentation and write TOML/Markdown by hand.

Related Changes in the Same Release

The v2.23.2 release also shipped a redesigned /config settings browser (covered separately) and packaged Mistral Vibe's app-server protocol as a standalone vibe-app-server binary to support tighter desktop and IDE integrations. On the bug-fix side, the release corrected a long-standing issue where cached-token counts in session stats always reported as zero, fixed Zed ACP packaging to preserve symlinks, and resolved several smaller ACP/webview issues including a blank permission prompt and duplicated user messages.