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skill_kit

0.2.1
0.4.0 0.3.0 0.2.1 0.2.0 0.1.0

An Elixir framework for building LLM agent systems with skills, tools, and subagent delegation.

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skill_kit CHANGELOG.md
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CHANGELOG.md 

# Changelog



All notable changes to this project are documented in this file.



The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),

and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).



## [0.2.1] - 2026-06-08



### Fixed



- Compilation under Elixir 1.18.x on OTP 28. Compiled regexes (`~r/.../`) now hold a `#Reference` on OTP 28, which cannot be escaped into a module attribute, so any module storing a regex in an attribute failed to compile with `cannot escape #Reference`. The affected modules — `SkillKit.Webhook.Verifier.Slack`/`Github`/`Stripe` (the `@defaults` maps), `SkillKit.Kit.Local.Parser`, and `SkillKit.Scope.Validation` — now build their regexes in a private function instead. No public API or behavior change.



[0.2.1]: https://github.com/paper-crow/skill_kit/releases/tag/v0.2.1



## [0.2.0] - 2026-06-07



### Added



- Vision support in user messages: `SkillKit.Types.UserMessage` content may now be a list of content blocks (text and images), not just a string.

- Image and content-block lists in tool results: `SkillKit.Types.ToolResult` accepts structured content, dispatched correctly through the tool pipeline.



### Changed



- Skills now default `:tool` to `nil` (knowledge-only) instead of `SkillKit.Tools.Shell`. A tool-less skill injects its body without exposing an executable tool to the model; previously any tool-less skill silently granted bash access on activation. A tool is now opt-in via the `SkillKit.Kit` macro or explicit struct construction. The catalog treats `nil`-tool skills as first-class in the `activate_skill` enum.



[0.2.0]: https://github.com/paper-crow/skill_kit/releases/tag/v0.2.0



## [0.1.0] - 2026-06-07



Initial public release.



### Added



- Agent supervision tree (`SkillKit.start_agent/2`) with Registry, Catalog, and Core (Mailbox → Server → SubagentSupervisor).

- Skill domain model with frontmatter parsing, local kit loading, and provider aggregation via `SkillKit.Catalog`.

- Tool behaviour (`SkillKit.Tool`) with shell execution, hooks, and a tool runner pipeline.

- Authorization API with pluggable `SkillKit.AuthorizationProvider` and scope matching.

- LLM provider abstraction (`SkillKit.LLM`) with an Anthropic implementation and streaming events.

- Conversation persistence with pluggable stores (filesystem, in-memory) via storage abstraction.

- Webhook adapter with HMAC/Stripe/Slack/GitHub signature verifiers.

- Telemetry wrappers (`SkillKit.Telemetry`).



[0.1.0]: https://github.com/paper-crow/skill_kit/releases/tag/v0.1.0