# Changelog All notable changes to this project will be documented in this file. ## [Unreleased] ### Added - VS Code actor spawning with explicit behavior and initial state, structured message sending, pause/resume/stop/restart controls, and explicit scheduler ticks. JSON inputs preserve i64 integers and `$actor`/`$record` markers. - Lossless, size-bounded mutation requests and real-server/extension-host coverage for actor controls. - Non-destructive `image_changed` server notifications with coalesced per-connection revisions and automatic VS Code tree/inspector refresh. - Tests for WebSocket subprotocol negotiation, invalid messages, multi-client notifications, and automatic mailbox/lifecycle/failure inspector updates. - Initial TypeScript VS Code extension with explicit localhost connection management, an actor explorer, and read-only state/mailbox/execution snapshots. - Bounded protocol-v3 extension client with lossless 64-bit JSON integers, correlation checks, disconnect handling, and no automatic retries. - Extension transport tests, real Rust-server interoperability coverage, and a VS Code host test for inspector refresh and reconnect isolation. - Portable structured actor values: null, booleans, signed 64-bit integers, strings, lists, records, and distinct NanoID actor references. - JSON state/message literals in the REPL, including named `$actor` references, `$record` escaping, and actor-reference completion inside nested values. - Value conversion limits and tests for nested-state isolation, copied sends, cyclic/unsupported Rune output, and all-or-nothing structured transitions. - Reusable loopback TCP protocol client with bounded messages, correlation checks, explicit connection failures, and no automatic request retries. - Multi-client and reconnect tests proving that actors remain in the server-owned image after development clients disconnect. - Typed, instruction-sliced Rune invocations with preserved async execution, wake-driven resumption, and cancellation tests. - Minimal single-worker actor runtime with bounded FIFO mailboxes, private integer state, structured messages, immutable implementation IDs, explicit message effects, inspection, lifecycle events, stop, and restart. - Runnable two-actor counter demonstration and tests for runaway fairness, pending-message isolation, failures, backpressure, and all-or-nothing effects. - Interactive local CLI for spawning actors, sending messages, advancing ticks, inspecting actors/events, and stopping/restarting actors. - Versioned BLAKE3 source and implementation identities, original-source retention, a Rune compile-input fingerprint, and an in-memory compiled artifact cache. - In-memory named behavior revisions with optimistic publish checks, immutable history, rollback revisions, and runtime installation at idle handler boundaries. - CLI commands for named behavior publishing, history, rollback, and installation, plus `mise run run` to launch the local executable. - Cooperative actor pause/resume between scheduler ticks, preserving active invocations and emitting lifecycle events. - Explicit safe-point state migration during implementation installation, with atomic failure behavior and migration events. - Explicit invocation cancellation that requeues the reserved message for retry, exposed in the CLI and documented with native side-effect caveats. - Active actor execution telemetry in snapshots: completed VM steps, instruction pointer, and call-frame depth. - Trusted in-process `runa-image-api` service boundary for code and actor operations, now used by the local CLI. - Versioned, transport-neutral `runa-protocol` request, response, and event DTOs with serde support and request validation. - Transport-neutral `runa-server` dispatcher routing protocol commands through the image API with typed replies and error codes. - Local JSON-lines stdio transport for the protocol dispatcher, with a 1 MiB request limit and explicit malformed-input failures. - Reusable local child-process client for issuing correlated protocol requests and shutting down the server process cleanly. - Loopback-only TCP JSON-lines endpoint for local development clients, sharing the same live image as stdio and limiting concurrent clients. - Execution-model decision and Phase 1 runtime documentation. - Lifecycle tests proving failed-message retry from committed state and stop/restart preservation of reserved-first FIFO order. - NanoID-based public actor references, explicit behavior-and-state spawning, named REPL actor bindings, tab completion, and command history navigation. - NanoID-based public actor references, explicit behavior-and-state spawning, named REPL actor bindings, tab completion, and command history navigation. - Runnable Phase 0 experiment pinned to Rune 0.14.2, covering script execution, native calls, async suspension, instruction budgets, frame inspection, stepping, and compiled-code sharing across isolated VMs and threads. - Tests for feasibility results, invalid source, runtime errors, independent stacks, and cancellation by dropping suspended execution. - Rune feasibility report with measured timings, shallow object sizes, limitations, and a proposed Phase 1 execution model. - Initial Rust workspace with the `runa` binary and a `runa-rune` library scaffold for Phase 0. Rune integration is not implemented yet. - Project README and agent guidelines. - Base directories for architectural decisions, default image scripts, development automation, examples, system tests, and the VS Code extension. - Mise tasks for formatting, Clippy linting, workspace tests, and sequential pre-commit validation. - Tombi, rustfmt, and Clippy configurations. ### Changed - Renamed the server executable/crate from `runa-server` to `runa`, and the REPL from `runa` to `runa-cli`. The server now listens on `127.0.0.1:3737` by default. - Clap derive/env argument parsing for both executables, including generated help/version, `RUNA_LISTEN` / `RUNA_CONNECT`, and flag-over-environment precedence. - `mise run start` now starts the server; `mise run cli` launches the REPL. - Replaced the plain TCP JSON-lines transport with loopback-only WebSockets using the required `runa-debug` subprotocol in the server, REPL, and VS Code. Stdio framing and version 3 request/response shapes are unchanged. - Renamed the local REPL mise task from `run` to `start`. - Protocol v3 and Rune's two-argument `handle(state, message)` replace the temporary integer-only state and kind/value/target_ref message envelope. Returned sends now contain `(actor_reference, message)` pairs; migrations, snapshots, and events preserve structured values. - The REPL now connects to the localhost server rather than embedding its own image. Start the server first; `--connect` selects a loopback endpoint. - TCP server startup publishes the bundled counter behavior once; connecting or disconnecting clients does not reset behavior revisions or actor state. - Interactive CLI commands now use the versioned protocol dispatcher instead of calling the image API directly. - Protocol version 2 replaces numeric actor IDs with NanoID actor references and adds optional target references for message effects. - Protocol version 2 replaces numeric actor IDs with NanoID actor references and adds optional target references for message effects. - Actor implementation IDs now identify compiled source/configuration content rather than using sequential process-local numbers. - Expanded the architecture specification with crate ownership and dependency boundaries, and moved it to `docs/architecture.md`. - Required agents to pass `mise run pre-commit` before every commit and document user-visible changes in this changelog. ### Removed - Stdio protocol transport and child-process client; external clients now use runa-debug WebSockets exclusively. Removed the `serve` and `serve-network` mise tasks.