MAS Lab — Plugin Reference¶

Auto-generated from pyproject.toml files and library.yaml manifests. Run task docs-gen to refresh after adding or modifying packages.

This document is the canonical index of all plugins, tools, and flavours distributed in outshift-open/mas-lab. Each entry links back to the package that provides it.

How to use a plugin¶

Reference a plugin in your agent manifest (agent.yaml) or overlay:

plugins:
  - module: mas.library.standard.plugins.design_patterns.dp_react
    class: ReactDP

Or by short name when using a flavour that already activates it.

See flavours documentation and Tutorial 2 — Creating a MAS for practical examples.

Plugins by Category¶

Agent_Comm¶

Class	Full module path	Package
`LocalAgentComm`	`mas.library.standard.plugins.agentcomm.local`	`mas-library-standard`

Assembler¶

Class	Full module path	Package
`ContextAssemblerPlugin`	`mas.library.standard.plugins.context.assembler`	`mas-library-standard`

Checkpoint_Store¶

Class	Full module path	Package
`HybridCheckpointStore`	`mas.library.standard.plugins.checkpoint`	`mas-library-standard`
`InMemoryCheckpointStore`	`mas.library.standard.plugins.checkpoint`	`mas-library-standard`
`JsonCheckpointStore`	`mas.library.standard.plugins.checkpoint`	`mas-library-standard`

Circuit_Breaker¶

Class	Full module path	Package
`ThresholdCircuitBreaker`	`mas.library.standard.plugins.reliability.circuit_breaker`	`mas-library-standard`

Codec¶

Class	Full module path	Package
`Neo4jKGCodec`	`mas.library.kg.codecs`	`mas-library-kg`

Context_Manager¶

Class	Full module path	Package
`SlidingWindowConversation`	`mas.library.standard.plugins.context.conversation`	`mas-library-standard`
`StackConversation`	`mas.library.standard.plugins.context.conversation`	`mas-library-standard`
`SummarizingConversation`	`mas.library.standard.plugins.context.conversation`	`mas-library-standard`

Control_Protocol¶

Class	Full module path	Package
`ControlRpcProtocol`	`mas.library.standard.plugins.control.rpc`	`mas-library-standard`

Design_Pattern¶

Class	Full module path	Package
`CotPlugin`	`mas.library.standard.plugins.design_patterns.cot`	`mas-library-standard`
`DeterministicLinearPlugin`	`mas.library.standard.plugins.design_patterns.linear`	`mas-library-standard`
`DeterministicParallelPlugin`	`mas.library.standard.plugins.design_patterns.parallel`	`mas-library-standard`
`DeterministicSingleAgentPlugin`	`mas.library.standard.plugins.design_patterns.single`	`mas-library-standard`
`IntrospectionPlugin`	`mas.library.standard.plugins.design_patterns.introspection`	`mas-library-standard`
`PlanExecutePlugin`	`mas.library.standard.plugins.design_patterns.plan_execute`	`mas-library-standard`
`ReactPlugin`	`mas.library.standard.plugins.design_patterns.react`	`mas-library-standard`
`SinglePassPlugin`	`mas.library.standard.plugins.design_patterns.single_pass`	`mas-library-standard`
`TreeOfThoughtsPlugin`	`mas.library.standard.plugins.design_patterns.tree_of_thoughts`	`mas-library-standard`

Engine_Tool_Provider¶

Class	Full module path	Package
`LlmDelegator`	`mas.library.standard.plugins.delegation.llm_delegator`	`mas-library-standard`
`SubagentSpawner`	`mas.library.standard.plugins.engine_tools.subagent_spawner`	`mas-library-standard`

Eval_Metric¶

Class	Full module path	Package
`ToyEchoMetric`	`mas.library.eval.metrics.toy`	`mas-library-eval`

Execute_Sandbox¶

Class	Full module path	Package
`WorkdirSandbox`	`mas.library.standard.plugins.sandbox.workdir`	`mas-library-standard`

Governance¶

Class	Full module path	Package
`BacktrackOnErrorPlugin`	`mas.library.standard.plugins.governance.backtrack_on_error`	`mas-library-standard`
`NoUndeclaredToolPlugin`	`mas.library.standard.plugins.governance.no_undeclared_tool`	`mas-library-standard`
`RetryOnErrorPlugin`	`mas.library.standard.plugins.governance.retry_on_error`	`mas-library-standard`
`SampleGovernancePlugin`	`mas.library.standard.plugins.governance.sample`	`mas-library-standard`

Hitl_Contract¶

Class	Full module path	Package
`AutoResolveHitlContract`	`mas.library.standard.plugins.hitl.contracts`	`mas-library-standard`
`RegistryHitlContract`	`mas.library.standard.plugins.hitl.contracts`	`mas-library-standard`

Hitl_Responder¶

Class	Full module path	Package
`AutoApproveResponder`	`mas.library.standard.plugins.hitl.responders`	`mas-library-standard`
`AutoDenyResponder`	`mas.library.standard.plugins.hitl.responders`	`mas-library-standard`

Infra_Middleware¶

Class	Full module path	Package
`FaultInjectMiddleware`	`mas.library.standard.plugins.infra.fault_inject`	`mas-library-standard`
`LlmCacheMiddleware`	`mas.library.standard.plugins.infra.llm_cache`	`mas-library-standard`

Llm_Provider¶

Class	Full module path	Package
`CacheLLMProvider`	`mas.library.standard.plugins.llm.cache`	`mas-library-standard`
`OpenAILLMProvider`	`mas.library.standard.plugins.llm.openai`	`mas-library-standard`

Memory¶

Class	Full module path	Package
`SemanticMemoryPlugin`	`mas.library.standard.plugins.memory.memory_semantic`	`mas-library-standard`

Observability¶

Class	Full module path	Package
`NativeObservabilityPlugin`	`mas.library.standard.plugins.observability.native_plugin`	`mas-library-standard`
`OtelObservabilityPlugin`	`mas.library.telemetry.plugins.otel_plugin`	`mas-library-telemetry`

Related_State¶

Class	Full module path	Package
`CopyDirRelatedState`	`mas.library.standard.plugins.related_state.copy_dir`	`mas-library-standard`
`GitWorktreeRelatedState`	`mas.library.standard.plugins.related_state.git_worktree`	`mas-library-standard`

Runtime¶

Class	Full module path	Package
`DebugScriptPlugin`	`mas.library.standard.plugins.governance.debug_script`	`mas-library-standard`

Skill_Catalog¶

Class	Full module path	Package
`SkillCatalogPlugin`	`mas.library.skills.plugins.sk_catalog`	`mas-library-skills`

Skill_Impl¶

Class	Full module path	Package
`ADKSkillPlugin`	`mas.library.skills.plugins.plugin_skills_adk`	`mas-library-skills`
`LangChainSkillPlugin`	`mas.library.skills.plugins.plugin_skills_langchain`	`mas-library-skills`
`NativeSkillPlugin`	`mas.library.skills.plugins.plugin_skills_native`	`mas-library-skills`

Skill_Shell¶

Class	Full module path	Package
`RunSkillScriptPlugin`	`mas.library.skills.plugins.sk_shell`	`mas-library-skills`

Skill_Tools¶

Class	Full module path	Package
`SkillToolsPlugin`	`mas.library.skills.plugins.sk_tools`	`mas-library-skills`

Step¶

Class	Full module path	Package
`ClickhouseDumpStep`	`mas.library.telemetry.bench`	`mas-library-telemetry`
`CompareKgStep`	`mas.library.kg.bench`	`mas-library-kg`
`CompareOtelSpansStep`	`mas.library.telemetry.bench`	`mas-library-telemetry`
`EmbedStatesStep`	`mas.library.kg.steps.embed_states`	`mas-library-kg`
`EventsToOtelStep`	`mas.library.telemetry.bench`	`mas-library-telemetry`
`ExportOtelStep`	`mas.library.telemetry.bench`	`mas-library-telemetry`
`ListClickhouseSessionsStep`	`mas.library.telemetry.steps.list_clickhouse_sessions`	`mas-library-telemetry`
`Neo4jDumpStep`	`mas.library.kg.bench`	`mas-library-kg`
`Neo4jPushStep`	`mas.library.kg.bench`	`mas-library-kg`
`NormalizeEventsStep`	`mas.library.kg.bench`	`mas-library-kg`
`NormalizeOtelStep`	`mas.library.kg.bench`	`mas-library-kg`
`PlotMultilevelTrajectoryKGStep`	`mas.library.kg.plots`	`mas-library-kg`
`ValidateKgStep`	`mas.library.kg.bench`	`mas-library-kg`
`VerifyEventsStep`	`mas.library.kg.bench`	`mas-library-kg`
`VerifyOtelStep`	`mas.library.telemetry.bench`	`mas-library-telemetry`

Summarizer¶

Class	Full module path	Package
`DropSummarizer`	`mas.library.standard.plugins.context.summarizer`	`mas-library-standard`
`LlmSummarizer`	`mas.library.standard.plugins.context.summarizer`	`mas-library-standard`

System_Tool¶

Class	Full module path	Package
`ControlTools`	`mas.library.standard.plugins.system_tools.control`	`mas-library-standard`
`InformUserTool`	`mas.library.standard.plugins.system_tools.inform_user`	`mas-library-standard`
`RequestHumanInputTool`	`mas.library.standard.plugins.system_tools.request_human_input`	`mas-library-standard`
`SpawnSubagentTool`	`mas.library.standard.plugins.system_tools.spawn_subagent`	`mas-library-standard`
`SpawnSubagentTool`	`mas.library.standard.plugins.system_tools.spawn_subagent`	`mas-library-standard`

Tool_Provider¶

Class	Full module path	Package
`LocalToolProvider`	`mas.library.standard.plugins.tools.local`	`mas-library-standard`

User_Io_Contract¶

Class	Full module path	Package
`RegistryUserIOContract`	`mas.library.standard.plugins.hitl.contracts`	`mas-library-standard`

All Plugins — Alphabetical Index¶

Class	Category	Package
`ADKSkillPlugin`	skill_impl	`mas-library-skills`
`AutoApproveResponder`	hitl_responder	`mas-library-standard`
`AutoDenyResponder`	hitl_responder	`mas-library-standard`
`AutoResolveHitlContract`	hitl_contract	`mas-library-standard`
`BacktrackOnErrorPlugin`	governance	`mas-library-standard`
`CacheLLMProvider`	llm_provider	`mas-library-standard`
`ClickhouseDumpStep`	step	`mas-library-telemetry`
`CompareKgStep`	step	`mas-library-kg`
`CompareOtelSpansStep`	step	`mas-library-telemetry`
`ContextAssemblerPlugin`	assembler	`mas-library-standard`
`ControlRpcProtocol`	control_protocol	`mas-library-standard`
`ControlTools`	system_tool	`mas-library-standard`
`CopyDirRelatedState`	related_state	`mas-library-standard`
`CotPlugin`	design_pattern	`mas-library-standard`
`DebugScriptPlugin`	runtime	`mas-library-standard`
`DeterministicLinearPlugin`	design_pattern	`mas-library-standard`
`DeterministicParallelPlugin`	design_pattern	`mas-library-standard`
`DeterministicSingleAgentPlugin`	design_pattern	`mas-library-standard`
`DropSummarizer`	summarizer	`mas-library-standard`
`EmbedStatesStep`	step	`mas-library-kg`
`EventsToOtelStep`	step	`mas-library-telemetry`
`ExportOtelStep`	step	`mas-library-telemetry`
`FaultInjectMiddleware`	infra_middleware	`mas-library-standard`
`GitWorktreeRelatedState`	related_state	`mas-library-standard`
`HybridCheckpointStore`	checkpoint_store	`mas-library-standard`
`InformUserTool`	system_tool	`mas-library-standard`
`InMemoryCheckpointStore`	checkpoint_store	`mas-library-standard`
`IntrospectionPlugin`	design_pattern	`mas-library-standard`
`JsonCheckpointStore`	checkpoint_store	`mas-library-standard`
`LangChainSkillPlugin`	skill_impl	`mas-library-skills`
`ListClickhouseSessionsStep`	step	`mas-library-telemetry`
`LlmCacheMiddleware`	infra_middleware	`mas-library-standard`
`LlmDelegator`	engine_tool_provider	`mas-library-standard`
`LlmSummarizer`	summarizer	`mas-library-standard`
`LocalAgentComm`	agent_comm	`mas-library-standard`
`LocalToolProvider`	tool_provider	`mas-library-standard`
`NativeObservabilityPlugin`	observability	`mas-library-standard`
`NativeSkillPlugin`	skill_impl	`mas-library-skills`
`Neo4jDumpStep`	step	`mas-library-kg`
`Neo4jKGCodec`	codec	`mas-library-kg`
`Neo4jPushStep`	step	`mas-library-kg`
`NormalizeEventsStep`	step	`mas-library-kg`
`NormalizeOtelStep`	step	`mas-library-kg`
`NoUndeclaredToolPlugin`	governance	`mas-library-standard`
`OpenAILLMProvider`	llm_provider	`mas-library-standard`
`OtelObservabilityPlugin`	observability	`mas-library-telemetry`
`PlanExecutePlugin`	design_pattern	`mas-library-standard`
`PlotMultilevelTrajectoryKGStep`	step	`mas-library-kg`
`ReactPlugin`	design_pattern	`mas-library-standard`
`RegistryHitlContract`	hitl_contract	`mas-library-standard`
`RegistryUserIOContract`	user_io_contract	`mas-library-standard`
`RequestHumanInputTool`	system_tool	`mas-library-standard`
`RetryOnErrorPlugin`	governance	`mas-library-standard`
`RunSkillScriptPlugin`	skill_shell	`mas-library-skills`
`SampleGovernancePlugin`	governance	`mas-library-standard`
`SemanticMemoryPlugin`	memory	`mas-library-standard`
`SinglePassPlugin`	design_pattern	`mas-library-standard`
`SkillCatalogPlugin`	skill_catalog	`mas-library-skills`
`SkillToolsPlugin`	skill_tools	`mas-library-skills`
`SlidingWindowConversation`	context_manager	`mas-library-standard`
`SpawnSubagentTool`	system_tool	`mas-library-standard`
`SpawnSubagentTool`	system_tool	`mas-library-standard`
`StackConversation`	context_manager	`mas-library-standard`
`SubagentSpawner`	engine_tool_provider	`mas-library-standard`
`SummarizingConversation`	context_manager	`mas-library-standard`
`ThresholdCircuitBreaker`	circuit_breaker	`mas-library-standard`
`ToyEchoMetric`	eval_metric	`mas-library-eval`
`TreeOfThoughtsPlugin`	design_pattern	`mas-library-standard`
`ValidateKgStep`	step	`mas-library-kg`
`VerifyEventsStep`	step	`mas-library-kg`
`VerifyOtelStep`	step	`mas-library-telemetry`
`WorkdirSandbox`	execute_sandbox	`mas-library-standard`

Tool Manifests¶

Tools declared via *.tool.yaml manifests across all libraries.

Name	Description	Class	Tags	Package
`run-skill-script`	Execute a bundled script from a skill's scripts/ directory.	`RunSkillScriptPlugin`	`skills`, `shell`, `execution`	`mas-library-skills`
`skill-access`	Skill access tools — activate_skill, list_skill_files, read_skill_file.	`SkillToolsPlugin`	`skills`, `context`	`mas-library-skills`

Bundled Flavours¶

Flavour YAML files shipped inside library packages.

Name	Description	Package
`local`	Default local development flavour. Infra bundles are resolved via workspace refs…	`mas-library-standard`
`local-benchmark`	Benchmark flavour for mas-lab batch runs. Uses file telemetry and native observa…	`mas-library-standard`
`mcp`	Expose local tools through the MCP protocol.	`mas-library-standard`