From 58e2867f19bc4e339e4662672c99491be66ed38c Mon Sep 17 00:00:00 2001 From: Bryan Helmkamp Date: Mon, 9 Mar 2026 10:02:20 -0400 Subject: [PATCH] Update changelog for 2026-03-09 with exe.dev maturation and update 2026-03-08 Co-Authored-By: Claude Opus 4.6 --- .claude/skills/changelog/watermark | 2 +- docs/changelog/2026-03-08.mdx | 9 +++++++ docs/changelog/2026-03-09.mdx | 39 ++++++++++++++++++++++++++++++ docs/docs.json | 1 + 4 files changed, 50 insertions(+), 1 deletion(-) create mode 100644 docs/changelog/2026-03-09.mdx diff --git a/.claude/skills/changelog/watermark b/.claude/skills/changelog/watermark index 59996da02..8c6b6ee74 100644 --- a/.claude/skills/changelog/watermark +++ b/.claude/skills/changelog/watermark @@ -1 +1 @@ -d790d8fc3e5070804bdd1cd1d888d9604057c9b8 +4ab96b9e1470b84f8a7bbcfe9a1543961f044399 diff --git a/docs/changelog/2026-03-08.mdx b/docs/changelog/2026-03-08.mdx index 7f7b78352..e26ba962a 100644 --- a/docs/changelog/2026-03-08.mdx +++ b/docs/changelog/2026-03-08.mdx @@ -44,6 +44,7 @@ To migrate, update any scripts or aliases: +- Added `--goal-file` flag to `arc run` for reading goal from a file instead of inline text - MCP servers can now be configured in TOML via `cli.toml` instead of JSON - `verbose = true` in `cli.toml` defaults to verbose output without needing `-v` - `goal` is now optional in run config TOML — precedence is CLI `--goal` > TOML `goal` > DOT graph attribute @@ -52,6 +53,9 @@ To migrate, update any scripts or aliases: +- Script nodes now execute inside the configured sandbox instead of on the host — fixes issues where agents edited files in the sandbox but lint/test commands ran on the host +- Asset collection is now opt-in via `[assets]` config with custom include globs, eliminating ~30s file scans per stage when not needed +- Workflow runs now fail immediately on git checkpoint commit failure instead of silently continuing - GitHub webhook listener via Tailscale funnel — auto-configures webhook URL on startup - `[sandbox.env]` support passes environment variables through to sandbox tool execution - `project_memory` attribute on prompt nodes for persistent context across stages @@ -64,6 +68,9 @@ To migrate, update any scripts or aliases: +- Daytona sandboxes now named `arc-{run_id}` for easy correlation with workflow runs +- Logs directory naming changed from `arc-run-YYYYMMDD-HHMMSS` to `YYYYMMDD-{run_id}` +- Truncated stage failure error display to show only the last line in `arc run` output - `apply_patch` error responses now include file contents for better debugging of failed edits - v4a patch parser/applier rewritten to match canonical OpenAI codex spec - Accept bare `@@` hunk headers in v4a `apply_patch` parser @@ -71,6 +78,8 @@ To migrate, update any scripts or aliases: +- Fixed SSE streaming format mismatch in `/completions` endpoint +- Exempt `/tmp/` paths from sandbox read-before-write guard - Fixed sandbox file-write validation incorrectly blocking valid operations - Fixed stall watchdog killing agent during long LLM reasoning turns - Added 5-minute stream read timeout with 5-second retry backoff for sandbox connections diff --git a/docs/changelog/2026-03-09.mdx b/docs/changelog/2026-03-09.mdx new file mode 100644 index 000000000..0651bbb33 --- /dev/null +++ b/docs/changelog/2026-03-09.mdx @@ -0,0 +1,39 @@ +--- +title: "exe.dev git cloning, cancellation, and checkpointing" +date: "2026-03-09" +--- + +## exe.dev sandbox maturation + +The exe.dev sandbox provider now supports the full workflow lifecycle. Previously, exe.dev VMs could run agent stages but lacked git integration, cancellation, and checkpointing — making them unusable for real multi-stage workflows. Now, Arc automatically clones the local git repo into exe.dev VMs, supports remote git checkpointing between stages, and wires up cancellation tokens so stopping a run cleanly tears down the VM. + +You can also specify a custom container image and connect via SSH: + +```toml title="run.toml" +[execution] +environment = "exe" + +[execution.exe] +image = "my-custom-image:latest" +``` + +```bash +arc run --ssh my-workflow.dot +``` + +## More + + +- Added `[pull_request]` config section in `cli.toml` so auto-PR works with `.dot` files without needing a `run.toml` +- Workflow run output now shows local time instead of UTC +- Shortened token and tool count labels in CLI progress output for brevity + + + +- Subagent status lines now indent deeper than tool calls in CLI progress for clearer hierarchy + + + +- Fixed pipe deadlock in local sandbox when child process output exceeds 64KB +- Fixed shell-quoting of script-assembled arguments to prevent word-splitting issues + diff --git a/docs/docs.json b/docs/docs.json index 591134421..b105cb68d 100644 --- a/docs/docs.json +++ b/docs/docs.json @@ -266,6 +266,7 @@ "group": "March 2026", "icon": "clock-rotate-left", "pages": [ + "changelog/2026-03-09", "changelog/2026-03-08", "changelog/2026-03-07", "changelog/2026-03-06",