Foundation for sandbox/SSH sync status updates. Adds a shared throttled progress reporter and threads an optional onProgress sink end-to-end so the byte-counting transport rewrites can attach counters without further changes to execution-target.ts or the adapters. - New runtime-progress helper: emits a line only on a 10% step crossing or after ~2s, and always emits the terminal completion line. Unit-tested. - prepareAdapterExecutionTargetRuntime gains an optional onProgress, forwarded to both the remote-managed and command-managed branches; the returned restoreWorkspace now accepts restoreWorkspace(onProgress?). - Managed-runtime prepare/restore signatures accept onProgress (passthrough; byte counting handled by the sandbox/SSH child tasks). - 7 local adapters pass an onProgress adapting onLog into prepare + restore. onProgress is optional everywhere; existing callers and tests are unaffected. Co-Authored-By: Paperclip <noreply@paperclip.ing>
@paperclipai/adapter-utils
Shared utilities for Paperclip adapters: process spawning, environment injection, sandbox/SSH transport, workspace sync, and the round-trip helpers that move code between the local execution-workspace cwd and wherever the agent actually runs.
For the adapter-author guide see
docs/adapters/creating-an-adapter.md
and the in-repo notes at packages/adapters/AUTHORING.md.
No-remote-git contract
The local execution-workspace cwd is the only persistence boundary across runs. No adapter may depend on a git remote for cross-run state.
Adapters that run the agent on a different host should use the SSH round-trip
helpers in src/ssh.ts:
prepareWorkspaceForSshExecution({ spec, localDir, remoteDir })— bundles the local cwd (tracked files, dirty edits, untracked additions, and the git history needed to reconstruct it) toremoteDirbefore the run starts. Runs with nogit remoteconfigured.restoreWorkspaceFromSshExecution({ spec, localDir, remoteDir, ... })— syncs the remote cwd back intolocalDirafter the run, including any new commits the agent created. Also runs with nogit remoteconfigured.
prepareRemoteManagedRuntime in
src/remote-managed-runtime.ts wraps both
calls for adapters that want a per-run remote workspace and an automatic
restoreWorkspace() finally hook.
The invariant is pinned by the no-remote-git contract case in
src/ssh-fixture.test.ts, which asserts that a
remote-only commit propagates to the local worktree through the
prepare → restore round-trip with no git remote configured at any point. Do
not regress that test.