Spec Kit Templates 0.4.2: AI Skills & Agent Support

TL;DR

• Auto-register AI skills for extensions — no manual setup needed
• New agent support: Junie, Trae IDE, Kimi Code, Mistral, Tabnine
• Pluggable preset system with catalog and priority-based resolution

New

• Auto-register AI skills for extensions — Extensions now automatically register skills when applicable, eliminating manual configuration overhead.
• Pluggable preset system — Catalog-based presets with resolver and skills propagation for flexible project templates.
• Preset enable/disable toggle — Control which presets are active with updated semantics.
• Timestamp-based branch naming — specify init now supports timestamp options for branch creation.
• specify status command — New diagnostic command to check project health and status.
• specify doctor command — Project health diagnostics for troubleshooting setup issues.
• New agent support — Added Junie, Trae IDE, Kimi Code, Mistral, and Tabnine CLI agents.
• iFlow CLI support — Integration for iFlow agent workflows.
• Codex native skills workflow — Migrated Codex/agy init to native skills for consistency.
• Offline/air-gapped deployment — Core pack now embedded in wheel for environments without internet access.
• Before/after hook events — Wired hook events into specify and plan templates for custom workflows.
• .extensionignore support — Exclude files during extension installation with ignore patterns.
• Multiple active catalogs — Extensions can now use multiple catalogs simultaneously.
• Priority-based resolution ordering — Extensions and presets resolve by priority for predictable behavior.

Fixed

• NFR references renamed to success criteria — Updated analyze and clarify commands for clearer terminology.
• Missing Assumptions section — Added to spec template for completeness.
• Repository root detection now prioritizes .specify over git for accuracy.
• YAML I/O now handles Unicode and UTF-8 encoding correctly.
• Native skills frontmatter aligned with install_ai_skills workflow.
• PowerShell create-new-feature script now uses explicit positional binding.
• JSON control characters properly encoded as \uXXXX instead of stripped.
• Bash scripts hardened against shell injection and improved error handling.
• Git fetch stdout suppressed in create-new-feature.sh to reduce noise.
• Extension ID now displayed in list output for better visibility.
• Copilot extension command registration corrected.
• Qwen Code CLI migrated from TOML to Markdown format.
• Agy explicit command support deprecated for cleaner CLI.
• Quiet checkout prevents exceptions on git operations.
• Global branch numbering replaces per-short-name detection.
• After_tasks and after_implement hook events wired into command templates.
• C ignores now consistent with C++ patterns.
• Checklist file handling clarified for append vs create modes.
• Clarify command question limit corrected from 10 to 5.

Community Extensions Added

• AIDE, Extensify, Presetify, Checkpoint, conduct, verify-tasks, spec-kit-iterate, spec-kit-learn, DocGuard, Archive, Reconcile, cognitive-squad, Understanding, ralph, review, fleet, Jira Integration, Azure DevOps Integration, verify, Retrospective, sync

Update via: pip install --upgrade specify-cli or download from GitHub releases.

Source: Spec Kit