Module skill 

Available on crate feature skills only.

AgentSkills parsing, indexing, and runtime injection helpers.

Provides:

• Skill file discovery from .skills/
• Frontmatter validation (name, description)
• Lexical skill selection
• Runner plugin helper for skill injection

Available with feature: skills

Structs

ContextCoordinator

The Context Engineering Engine for adk-skill.

CoordinatorConfig

Configuration for the ContextCoordinator.

ParsedSkill

A parsed skill before it is assigned an ID and indexed.

SelectionPolicy

Criteria used to filter and score skills during selection.

SkillContext

The output of the context engineering pipeline.

SkillDocument

A fully indexed skill document with a content-based unique ID.

SkillFrontmatter

Frontmatter metadata for a skill, following the agentskills.io specification.

SkillIndex

A collection of indexed skills, providing efficient access to metadata and summaries.

SkillInjector

SkillInjectorConfig

SkillMatch

A ranked result representing a skill that matched a selection query.

SkillSummary

A lightweight summary of a skill, excluding the heavy body content.

Enums

ResolutionStrategy

Defines a strategy for resolving a skill into a context.

SkillError

ValidationMode

Controls how the framework handles skills/agents that request unavailable tools.

Traits

ToolRegistry

A registry that maps tool names to concrete tool instances.

Functions

apply_skill_injection

Injects the best-matching skill prompt into a user Content message.

discover_instruction_files

Discovers all instruction files: both .skills/ Markdown files and convention files (e.g. AGENTS.md, CLAUDE.md, SOUL.md) found anywhere in the project tree, excluding common build and dependency directories. Results are sorted and deduplicated.

discover_instruction_files_with_extras

Discovers all instruction files from project-local directories, extra directories, and convention files. Merges skill files from .skills/, .claude/skills/, and the provided extra_dirs with convention files found in the project tree. Non-existent or non-directory extra paths are silently skipped. Results are sorted and deduplicated.

discover_skill_files

Discovers all Markdown skill files under the .skills and .claude/skills/ directories at root.

discover_skill_files_with_extras

Discovers all Markdown skill files under the .skills/ and .claude/skills/ directories at root, plus any additional directories in extra_dirs.

load_skill_index

Loads a SkillIndex by discovering and parsing all instruction files under root.

load_skill_index_with_extras

Loads a SkillIndex by discovering and parsing all instruction files under root, plus any additional directories in extra_dirs.

parse_instruction_markdown

Parses an instruction Markdown file, choosing the strategy based on its path.

parse_skill_markdown

Parses a skill Markdown file that uses YAML frontmatter.

select_skill_prompt_block

Selects the top-scoring skill for a query and returns its formatted prompt block.

select_skills

Selects the most relevant skills from the index for a given query string.

Type Aliases

SkillResult