Crate everruns_builtins 

Portable built-in capabilities for the Everruns ecosystem.

everruns-builtins is the optional, backend-neutral implementation bundle for portable capabilities that compose through everruns-core execution contracts. This includes the standard skills, context, and human-intent implementations as well as policy hooks. It owns no server, database, network transport, process runner, interpreter, or hosted service implementation. OpenUI and A2UI prompt capabilities are available behind the explicit ui-capabilities feature.

Example

use everruns_builtins::{CurrentTimeCapability, register_portable_capabilities};
use everruns_core::{Capability, CapabilityRegistry};

let mut registry = CapabilityRegistry::new();
register_portable_capabilities(&mut registry)?;
assert_eq!(CurrentTimeCapability.id(), "current_time");
assert!(registry.get("current_time").is_some());

Re-exports

pub use native_async_tools::NativeAsyncToolsCapability;

pub use agent_instructions::AGENT_INSTRUCTIONS_CAPABILITY_ID;

pub use agent_instructions::AGENTS_MD_PATH;

pub use agent_instructions::AgentInstructionsCapability;

pub use agent_instructions::AgentInstructionsConfig;

pub use agent_instructions::DEFAULT_AGENT_INSTRUCTIONS_FILE;

pub use agent_instructions::MAX_AGENT_INSTRUCTIONS_FILES;

pub use agent_instructions::MAX_AGENTS_MD_SIZE;

pub use agent_instructions::format_agents_md_content;

pub use agent_instructions::format_instruction_file_content;

pub use attach_skill::AttachSkillCapability;

pub use auto_tool_search::AUTO_TOOL_SEARCH_CAPABILITY_ID;

pub use auto_tool_search::AutoToolSearchCapability;

pub use btw::BTW_CAPABILITY_ID;

pub use btw::BtwCapability;

pub use budgeting::BUDGETING_CAPABILITY_ID;

pub use budgeting::BudgetingCapability;

pub use channel_context::CHANNEL_CONTEXT_CAPABILITY_ID;

pub use channel_context::ChannelContextCapability;

pub use claude_tool_search::CLAUDE_TOOL_SEARCH_CAPABILITY_ID;

pub use claude_tool_search::ClaudeToolSearchCapability;

pub use compaction::COMPACTION_CAPABILITY_ID;

pub use compaction::CompactionCapability;

pub use compaction::CompactionStep;

pub use compaction::CompactionStrategy as RuntimeCompactionStrategy;

pub use compaction::CostControlConfig;

pub use compaction::CostControlMaskingResult;

pub use compaction::HierarchicalMemoryConfig;

pub use compaction::MaskingSummaryFormat;

pub use compaction::MemoryTier;

pub use compaction::ObservationMaskingConfig;

pub use compaction::ObservationMaskingResult;

pub use compaction::RuntimeCompactionConfig;

pub use compaction::SessionCompactionMetrics;

pub use compaction::SummarizationConfig;

pub use compaction::aggressive_trim;

pub use compaction::apply_cost_control_masking;

pub use compaction::apply_hierarchical_memory;

pub use compaction::apply_observation_masking;

pub use compaction::build_model_view_messages;

pub use compaction::build_summarization_prompt;

pub use compaction::build_summary_message;

pub use compaction::classify_memory_tiers;

pub use compaction::compose_summary_with_recent;

pub use compaction::estimate_tokens;

pub use compaction::estimate_total_tokens;

pub use compaction::format_messages_for_summarization;

pub use compaction::should_compact_for_cost;

pub use compaction::should_compact_proactively;

pub use compaction::total_tool_result_bytes;

pub use current_time::CURRENT_TIME_CAPABILITY_ID;

pub use current_time::CurrentTimeCapability;

pub use current_time::GetCurrentTimeTool;

pub use error_disclosure::ERROR_DISCLOSURE_CAPABILITY_ID;

pub use error_disclosure::ErrorDisclosureCapability;

pub use error_disclosure::resolve_error_disclosure;

pub use guardrails::GUARDRAILS_CAPABILITY_ID;

pub use guardrails::GuardrailsCapability;

pub use human_intent::HUMAN_INTENT_CAPABILITY_ID;

pub use human_intent::HumanIntentCapability;

pub use infinity_context::INFINITY_CONTEXT_CAPABILITY_ID;

pub use infinity_context::InfinityContextCapability;

pub use infinity_context::InfinityContextFilterOnlyCapability;

pub use infinity_context::QueryHistoryTool;

pub use loop_detection::LOOP_DETECTION_CAPABILITY_ID;

pub use loop_detection::LoopDetectionCapability;

pub use message_metadata::MESSAGE_METADATA_CAPABILITY_ID;

pub use message_metadata::MessageMetadataCapability;

pub use message_metadata::MessageMetadataConfig;

pub use message_metadata::MessageMetadataField;

pub use message_metadata::render_annotation;

pub use message_metadata::strip_leading_timestamp_annotations;

pub use openai_tool_search::DEFAULT_TOOL_SEARCH_THRESHOLD;

pub use openai_tool_search::OPENAI_TOOL_SEARCH_CAPABILITY_ID;

pub use openai_tool_search::OpenAiToolSearchCapability;

pub use openai_tool_search::model_supports_native_tool_search;

pub use parallel_tool_calls::PARALLEL_TOOL_CALLS_CAPABILITY_ID;

pub use parallel_tool_calls::ParallelToolCallsCapability;

pub use parallel_tool_calls::ParallelToolCallsMode;

pub use parallel_tool_calls::parallel_tool_calls_from_config;

pub use progress_guard::PROGRESS_GUARD_CAPABILITY_ID;

pub use progress_guard::ProgressGuardCapability;

pub use prompt_caching::PROMPT_CACHING_CAPABILITY_ID;

pub use prompt_caching::PromptCachingCapability;

pub use prompt_canary_guardrail::DEFAULT_REPLACEMENT as PROMPT_CANARY_DEFAULT_REPLACEMENT;

pub use prompt_canary_guardrail::PROMPT_CANARY_GUARDRAIL_CAPABILITY_ID;

pub use prompt_canary_guardrail::PromptCanaryGuardrailCapability;

pub use prompt_canary_guardrail::REASON_CODE_SYSTEM_PROMPT_LEAK;

pub use self_budget::SELF_BUDGET_CAPABILITY_ID;

pub use self_budget::SelfBudgetCapability;

pub use skills::SKILLS_CAPABILITY_ID;

pub use skills::Skills;

pub use skills::SkillsCapability;

pub use skills_scoped::ScopedSkillsCapability;

pub use skills_scoped::SkillDirResolver;

pub use skills_scoped::SkillScope;

pub use skills_scoped::SkillsConfig;

pub use skills_scoped::VfsSkillDirResolver;

pub use stateless_todo_list::STATELESS_TODO_LIST_CAPABILITY_ID;

pub use stateless_todo_list::StatelessTodoList;

pub use stateless_todo_list::StatelessTodoListCapability;

pub use stateless_todo_list::WriteTodosTool;

pub use system_commands::SYSTEM_COMMANDS_CAPABILITY_ID;

pub use system_commands::SystemCommandsCapability;

pub use tool_approval::ApprovalDecision;

pub use tool_approval::ApprovalMode;

pub use tool_approval::TOOL_APPROVAL_CAPABILITY_ID;

pub use tool_approval::ToolApprovalCapability;

pub use tool_approval::ToolApprover;

pub use tool_call_repair::DEFAULT_MAX_REPROMPTS;

pub use tool_call_repair::MAX_SALVAGE_INPUT_BYTES;

pub use tool_call_repair::RepairOutcome;

pub use tool_call_repair::SalvageResult;

pub use tool_call_repair::TOOL_CALL_REPAIR_CAPABILITY_ID;

pub use tool_call_repair::ToolCallRepairCapability;

pub use tool_call_repair::ToolCallRepairConfig;

pub use tool_call_repair::salvage_tool_arguments;

pub use tool_call_repair::tool_call_repair_capability;

pub use tool_output_distillation::DistillOutputHook;

pub use tool_output_distillation::TOOL_OUTPUT_DISTILLATION_CAPABILITY_ID;

pub use tool_output_distillation::ToolOutputDistillationCapability;

pub use tool_output_persistence::PersistOutputHook;

pub use tool_output_persistence::TOOL_OUTPUT_PERSISTENCE_CAPABILITY_ID;

pub use tool_output_persistence::ToolOutputPersistenceCapability;

pub use tool_search::TOOL_SEARCH_CAPABILITY_ID;

pub use tool_search::TOOL_SEARCH_TOOL_NAME;

pub use tool_search::ToolSearchCapability;

pub use tool_search::ToolSearchTool;

pub use usage_limit_auto_continue::AutoContinueConfig;

pub use usage_limit_auto_continue::USAGE_LIMIT_AUTO_CONTINUE_CAPABILITY_ID;

pub use usage_limit_auto_continue::UsageLimitAutoContinueCapability;

pub use usage_limit_auto_continue::resolve_usage_limit_auto_continue;

Modules

agent_instructions

Agent Instructions Capability (AGENTS.md)

attach_skill

auto_tool_search

btw

budgeting

channel_context

Channel thread context as leading conversation context.

claude_tool_search

compaction

Compaction Capability

current_time

CurrentTime Capability - provides tools to get current date and time

error_disclosure

guardrails

human_intent

infinity_context

Infinity Context Capability

loop_detection

message_metadata

MessageMetadata Capability — annotates user/agent messages with metadata (currently the message timestamp) in the prompt-facing model view.

native_async_tools

Explicit native async opt-in. The host owns persistence and execution policy.

openai_tool_search

parallel_tool_calls

progress_guard

prompt_caching

prompt_canary_guardrail

self_budget

skills

skills_scoped

stateless_todo_list

StatelessTodoList Capability - task list management for tracking work progress

system_commands

tool_approval

tool_call_repair

tool_output_distillation

tool_output_persistence

tool_search

usage_limit_auto_continue

Structs

CompactionConfig

Application-facing context-compaction policy.

ToolSearch

Model-adaptive deferred tool-loading configuration.

Enums

CompactionStrategy

Strategy used when a conversation outgrows the model context.

Functions

portable_capability_registry

Build a registry containing only portable capabilities.

register_default_tools

Add the portable context-free tools that belong in a host’s default executor registry.

register_monitor_tools

Add portable context-free tools safe for scheduled monitor probes.

register_portable_capabilities

Register every portable capability in stable product order.

register_runtime_capabilities

Register the runtime-safe portable capabilities in stable order.