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Build durable streams for real-time data subscriptions.

Spawn ephemeral microVMs and expose 14 sandbox::* triggers (lifecycle + filesystem) for isolated command execution and file ops.

Register, store, and watch typed configuration values for the engine.

Durable function queues - registers the `durable:subscriber` trigger type and the queue/DLQ service functions.

One front door + provider protocol in front of every LLM provider.

Engine introspection (functions / triggers / workers), workers registry proxy, and filesystem-backed skill + prompt reader.

Durable, reactive, branching store of typed conversation entries with six emitted trigger types.

OpenTelemetry-based traces, metrics, logs, alerts, and sampling.

Web console for iii — bundles the React UI and proxies the engine WebSocket on a single port.

OpenAI Responses provider worker with Chat Completions compatibility; implements provider::openai::stream and provider::openai::refresh_models behind llm-router.

Unix shell + filesystem worker — exec with denylist/timeout/output caps and background jobs; fs::ls|stat|mkdir|rm|chmod|mv|grep|sed|read|write with host jail, denylist, size caps, and sandbox-target forwarding

Thin durable turn loop that wires session-manager, context-manager, and llm-router into an agent loop; spawns sub-agents as child sessions.

Turns a raw conversation history plus a target model into a model-ready context — token counting, function-result pruning, and history compaction.

Anthropic Messages API provider worker; implements provider::anthropic::stream and provider::anthropic::refresh_models behind llm-router.

Talk to PostgreSQL, MySQL, and SQLite from iii — query, execute, transactions, prepared statements, and change feeds.

Outbound HTTP client on the iii bus (web::fetch).

Scrapling as an iii worker — scrapling::* functions run HTTP / anti-bot / browser fetches, CSS/XPath/regex/adaptive extraction, persistent sessions, and a declarative crawl over the iii bus.

III Language Server — autocompletion and hover for III engine functions and triggers

Durable cross-session agent memory — named banks of always-injected markdown rules and auto-extracted memories, hybrid BM25 + entity recall, pinning, and supersede-never-delete history. Plain files on disk; every operation is a traced function.

OpenAI Codex (ChatGPT subscription) provider; implements provider::openai-codex::stream and provider::openai-codex::refresh_models behind llm-router, sourcing credentials from the auth-credentials vault.