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Author SHA1 Message Date
17e8bd7735 fix(runner): save native checkpoints when the sandbox disk is full (#18705)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work
> - Native runs on a remote sandbox save two things after each turn: the
provider checkpoint and the workspace export
> - An agent can fill the sandbox disk during its own work, for example
with a package install
> - The turn still finishes, but both saves need free sandbox disk, so
they fail and the task becomes blocked with no clear reason
> - This pull request makes the checkpoint work on a full disk and makes
a full disk visible in the export failure
> - The benefit is fewer stranded checkpoints, and an operator sees at
once why an export failed

## Linked Issues or Issue Description

Related: #18715 added the shared-principal response-recovery control
synchronized below. #18644 reduced the scratch disk that the workspace
capture uses. #18172 added the disk-free streaming fallback to the
Daytona directory sync-out. Both were deployed when this failure
occurred. Neither changes the checkpoint copy, and neither can help when
the disk has no free space.

**What happened?**

A native agent ran a package install for a large monorepo in a 10 GB
Daytona sandbox. `df` in the run showed `10G 10G 4.6M 100%`. The agent
committed its work and reported `done`. Then:

1. The provider checkpoint made a filtered copy of the provider
directory inside the sandbox (`tar -cf archive; tar -xf archive -C
snapshot`) to apply its exclusions. On the full disk, tar failed. The
run recorded `runner_remote_checkpoint_snapshot_failed` without the
reason, and the partial copy stayed on the disk.
2. Workspace finalization failed three times, and file preservation
failed six times. The capture builds its archive inside the sandbox, so
each attempt failed. Every failure was recorded as
`remote_workspace_operation_failed` / `export_interrupted`, so nothing
named the full disk.
3. The task went to `blocked`. The only copy of the commit was in the
retained sandbox.

**Expected behavior**

The checkpoint does not need free sandbox disk when the provider can
stream. A workspace export that cannot fit says that the sandbox disk is
full.

**Steps to reproduce**

1. Run a native agent with a provider whose checkpoint has exclusions
(for example ACPX) in a small remote sandbox.
2. In the turn, fill the sandbox disk (for example `pnpm install` of a
large repository, or `fallocate` of the free space) and finish the task.
3. The checkpoint fails with `runner_remote_checkpoint_snapshot_failed`,
and every workspace export attempt fails with a generic code.

**Paperclip version or commit**

Observed on `410b0e27015`. This change is based on `5955dd4eb4c`.

## What Changed

- Synchronize the shared-principal response-recovery regression with its
saved comments and empty final deadline. Cover an in-flight discovery
invalidation. Keep every authority lock, exact publication, error, and
no-retry assertion. This changes test synchronization only.

- `syncRemoteRunnerDirectoryOut`: when the in-sandbox checkpoint copy
fails with a full-disk tar diagnostic, remove the partial copy and pass
the exclusions to the provider sync-out (`exclude` on the directory
mapping). The Daytona sync-out streams the directory without sandbox
disk when it cannot write its archive. Other copy failures and timeouts
still throw `runner_remote_checkpoint_snapshot_failed`. They now also
remove the partial copy.
- `remote-workspace-transport.ts`: the helper install and the capture
scripts report `remote_workspace_sandbox_disk_full: ...` when Node
reports `ENOSPC` or `EDQUOT`, or a Git or tar child reports "No space
left on device". `command()` passes only that exact message through,
like the existing unfinished-Git-operation message.
- `native-workspace-finalizer.ts`: a remote save that fails with that
message adds it to the failed operation's stderr. The failure code, the
retry budget, and the recovery flow do not change.

## Verification

- Current-head infrastructure interruption: the [Build
job](https://github.com/paperclipai/paperclip/actions/runs/41637668555/job/125923826158)
completed the actual build and production bundle boot, then the runner
received a shutdown signal during the clean public Grok npm-install
check. GitHub marked that step cancelled. The exact host-stop cause was
not retained. One bounded rerun of only the failed Build and dependent
`ci / verify` jobs passed on the unchanged head. [Build attempt
2](https://github.com/paperclipai/paperclip/actions/runs/41637668555/job/125931400745)
completed successfully, including the clean Grok npm-install check. No
product code, assertion or workflow changed for this interruption.

- CI failure retained: commit `6c5937fcae` failed [chat shard
1/3](https://github.com/paperclipai/paperclip/actions/runs/41634638570/job/125913957217)
because the shared-principal fixture saw zero saved comments after
`worker.ready` and zero active work. The other chat child passed. The
exact case passed once locally and then 30 times on the same Node
24.22.2 version as CI; those passes alone do not explain the CI
interleaving.
- Controlled RED/GREEN: invalidate the real database discovery once
while its read is in flight. The worker correctly retains a future
reconstruction deadline, but the old initial-pass/active-count barrier
reproduces the same zero-versus-one comment assertion. Waiting for both
saved comments and final `active=0`/`nextWakeAt=null` passes. Six
real-PostgreSQL controls pass on final commit `a60e5629e8`, including
endpoint independence, source revocation, and external lock
failure/recovery. No sleep, timeout increase, weakened assertion, or
product scheduling/authorization change was added.
- A local server typecheck first lacked the checkout's built Runner
declarations. After the declared Runner TypeScript build, the server
typecheck passes on `a60e5629e8`. Final-head remote verification is
complete: 54 successful checks, 3 expected skips, no failures or pending
checks, and successful `ci / verify` and `ci / e2e` aggregates. Greptile
is 5/5 on this exact commit with no unresolved review threads.

- Merge preparation: rebased onto master `b22ef22d56` and kept both
test-import additions. Added the checkpoint fallback and
capacity-failure contract to `doc/execution-semantics.md`. On rebased
commit `6c5937fcae`, 47 focused checkpoint, transport, finalization and
retained warm-projection tests passed across three files. The name
filter skipped 1,040 unrelated cases. Map and whitespace checks passed.
The final-head CI and Greptile results are recorded above.

- `npx vitest run
server/src/services/native-runtime/native-session-executor.test.ts
server/src/services/native-runtime/native-workspace-finalizer.test.ts
server/src/services/remote-workspace-snapshot-archive.test.ts` passes
(1,152 tests).
- `npx vitest run server/src/services/remote-workspace-transport.test.ts
server/src/services/native-runtime/native-workspace-finalizer-failure.test.ts`
passes (30 tests).
- New tests:
- Checkpoint, with real files: a full-disk snapshot leaves a partial
copy. The provider then gets the exclusions, the session files are kept,
the package caches are left out, and the partial copy is removed.
- Checkpoint: a permission failure and a timeout still fail, remove the
partial copy, and do not call the sync-out.
- Transport: the real capture scripts run with an `ENOSPC` preload, for
the helper install and for the archive write. Both report the full-disk
message and leave no partial attempt. A message with extra text still
collapses to `remote_workspace_operation_failed`.
- Finalizer: the operation stderr names the full disk and keeps
`workspace_sync_out_failed`. Other failures keep the bare code.
- With the source change removed, the 3 checkpoint cases and the 2
transport ENOSPC cases fail.
- `npx tsc --noEmit -p server/tsconfig.json` is clean.
- Suites that refer to the changed error codes
(`explicit-native-continuation`, `native-recovery-notice-work`,
`native-run-finalizer-telemetry`, `native-workspace-export-retry`,
`remote-workspaces.integration`) pass. In `chat-channels.integration`, 2
cases fail locally on unmodified `master` too (a bundled skill path
outside the checkout, and a chat run timing assertion). They are not
related to this change.
- Manual recovery of the observed task: the retained sandbox was resumed
with free space, file preservation was requested again, and the saved
workspace contained the agent's commit.

## Risks

- The fallback runs only after the snapshot fails with a full-disk
diagnostic. The normal path does not change.
- Provider exclusions are not anchored to the directory root. In the
fallback, a nested entry that has an excluded name (for example a nested
`tmp` or `config.toml` in a Codex home) is also left out. The fallback
never copies more than the snapshot, so credentials stay out of the
checkpoint.
- The fallback depends on the provider honoring `exclude`, which the
sync protocol requires. The Daytona and Kubernetes providers honor it.
- A workspace export on a full disk still fails. This change only names
the cause. A full fix needs one of these: free-space reserve for the
export, removal of re-creatable caches before the export, or a capture
that streams its archive. Each of these changes behavior, so this pull
request does not include one.
- No migration.

## Model Used

- OpenAI Codex, GPT-6 family, assisted with merge preparation, conflict
resolution, documentation, test synchronization and verification. The
harness does not expose the exact serving model ID or context-window
size.

- Claude Opus 5.5 (`claude-opus-5-5`), Anthropic, in Claude Code with
tool use (shell, file edits, test runs). It did the root-cause analysis
from run events, tool output, and sandbox inspection, wrote the code and
tests, and ran local verification.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have not referenced internal/instance-local Paperclip issues or
links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip`
URLs)
- [x] My branch name describes the change (e.g. `docs/...`, `fix/...`)
and contains no internal Paperclip ticket id or instance-derived details
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] All Paperclip CI gates are green
- [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>
Co-authored-by: Dotta <bippadotta@protonmail.com>
2026-11-03 07:09:52 -06:00
DottaandPaperclip ed8fae8dbb fix(workspaces): preserve completed shallow sandbox exports (#18221)
## Thinking Path

> - Paperclip coordinates agent work and preserves its results.
> - Remote execution copies completed workspace changes back to the
host.
> - An agent can fetch a published branch with shallow Git history.
> - A full Git bundle omits the shallow boundary metadata and can fail
host connectivity checks.
> - This pull request carries the boundaries through the full-bundle
fallback and imports through normal Git fetch.
> - Recovery must also recognize completed native work on a reusable
lease without treating it as ordinary executor reuse.
> - Completed work can be saved without another provider turn, while
existing host history remains connected.

## Linked Issues or Issue Description

**What happened?**
Sandbox finalization can fail with a missing parent commit after an
agent checks out a separately fetched shallow branch. Re-exporting a
full bundle repeats the failure because Git bundles do not encode
shallow boundaries.

**Expected behavior**
Import the completed branch and saved files. Preserve existing host
ancestry and concurrent host edits. Keep normal Git connectivity and
workspace merge checks.

**Steps to reproduce**
1. Prepare a sandbox from one host commit.
2. Fetch a different published branch with depth one and check it out.
3. Save a result file and restore the sandbox workspace.

**Paperclip version or commit**
Reproduced against master before this repair. The regression fails with
the missing-parent error before the production change.

Related public context: #15268 covers rewritten history integration.
This repair handles shallow bundle transport before integration.
Searches found no equivalent open repair.

## What Changed

- Export shallow boundaries beside the full bundle when the delta import
lacks history.
- Unpack into a temporary shared bare repository. Keep parent
connections already available on the host and import with Git's shallow
fetch protocol.
- Reject malformed boundary values and retain existing connectivity,
branch, and concurrent-work merge guards. Keep boundary probes within 15
seconds without consuming the separate 60-second Git import budget.
- Let source-bound preservation recover reusable leases only for the
finalizer-selected, accepted successful native result and matching
completion contract. Retain provider-stop, physical ownership and
host-writer checks; ordinary reusable sources remain blocked.
- Classify invalid Git metadata separately from omittable unsafe
archives. Keep native finalization failed and preserve service-owned
file recovery; carry the sender's dedicated rejection across the command
boundary without transient retries.
- Share the failure allowlist across bounded run/activity projections
and cancelled-preservation selection. Migration `0416` rebuilds the
matching partial index; task chat retains the non-retryable recovery
notice.
- Add real Git, filesystem sandbox and database recovery regressions.
Update execution semantics and affected verification maps.

## Verification

- Red: real filesystem sandbox restore failed with the same
missing-parent/revision-walk error before the export repair.
- Green: 240 focused Git, workspace restore, sandbox transport and
native-finalization tests pass. Coverage includes both transfer paths,
malformed/oversized metadata, a genuinely shallow host with its original
boundary intact, and concurrent host work with both merge parents
verified.
- Red/green: a 14-second simulated probe left the final real Git fetch
only 45,893 ms before the budget split. It now retains over 55 seconds
after the probes; a 16-second probe exhausts its own budget before host
import.
- Red/green: an oversized read progress report was retried three times
before its distinct metadata classification. It now aborts the first
read before payload consumption, leaves the host tip unchanged and does
not retry.
- Red/green: the real metadata error was swallowed by best-effort export
and native finalization incorrectly returned success. Both regressions
now pass; all 240 focused Git/restore/native-finalization tests pass. A
PostgreSQL/filesystem fault-injection test also verifies retained files,
failed run, service-owned recovery barrier, no preservation receipt and
no new wake.
- Red/green: duplicate metadata produced 47 Git process starts before
deduplication; the bounded-work regression now passes. Oversized byte
and boundary inputs fail before Git probes.
- Recovery red: both reusable lease policies exhausted recovery despite
a selected accepted successful result. The assembled
PostgreSQL/filesystem path now passes for retained and both reusable
policies, including idempotent re-admission after exhausted automatic
recovery, saved files, no agent wake, and once-only existing-result
finalization.
- Source verification controls reject ordinary reusable leases,
rejected/failed/unselected results, another physical allocation owner,
and an active host writer without changing recorded state.
- The 78-test PostgreSQL/filesystem recovery/source suite passed before
the metadata classification correction. Its new persisted
metadata-failure regression also passes. Full workspace typecheck and
build pass at final head `69f10daab2`.
- `node scripts/check-maps.mjs` and `git diff --check` pass.
- Full local `pnpm test:run` attempts did not finish. They are not
counted as passes. Early focused runs exceeded 5-second and 30-second
fixture deadlines; the final serial suite passed all 176 tests with a
30-second per-test budget in 56.8 seconds.
- Red/green: both bounded PostgreSQL projections dropped the new code in
oversized results. All 19 source/projection cases now pass, plus an
actual index-predicate test that excludes a metadata repair hold and
still selects ordinary cancelled work.
- Red/green: an oversized sender `.git/shallow` lost its error type
before host validation. The real transport test now verifies one typed
rejection, no shallow-payload read, and an unchanged host tip. All 465
command/sandbox/task-chat tests pass, and token/migration gates pass.
- Full typecheck/build pass after these final contract corrections at
`69f10daab2`; all 20 PostgreSQL source/projection/index contracts pass.
All current-head CI checks passed; Greptile is 5/5 with no unresolved
review threads. Merged #18230 supplies the CI-cache and Linux
shell-fixture baseline repairs; their duplicate changes have been
removed from this PR. The final Runner lane passed after one justified
rerun of an unchanged authentication fixture timeout (all 11 fixture
tests also pass locally). Previous CI failures and incomplete local runs
remain recorded; live deployment and retained-run recovery remain
separate verification.

## Risks

- The fallback creates a temporary shared bare clone. Metadata is
limited to 64 KiB and 256 unique boundaries, duplicate/parent probes are
cached, and Git import has a 60-second command budget plus a separate
15-second boundary-probe budget. It runs only after a missing-history
import failure.
- Incorrect boundaries could hide real host ancestry. The importer
retains available parent connections, and regressions cover that case.
- The full-bundle fallback can transfer a bundle twice. This preserves
the existing fast delta path; removing that extra transfer is outside
this correctness repair.
- Preservation eligibility expands only for completed native exports on
reusable leases. It creates no provider turn and leaves ordinary
reusable leases ineligible. Database/filesystem regressions cover result
selection and competing physical/host ownership.
- The migration rebuilds one partial index; no tables, columns or user
records change. There are no agent execution admission, model, trust,
recovery permission, workflow or lockfile changes.

## Model Used

OpenAI Codex, GPT-6, with reasoning, code execution, and browser tools.
The exact serving variant and context-window size are not exposed in
this session.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have not referenced internal/instance-local Paperclip issues or
links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip`
URLs)
- [x] My branch name describes the change (e.g. `docs/...`, `fix/...`)
and contains no internal Paperclip ticket id or instance-derived details
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] All Paperclip CI gates are green
- [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>
2026-10-29 20:02:53 -05:00
DottaandPaperclip 14795136f5 fix(runtime): finalize and recover sandbox workspace exports safely (#14402)
Serialize native workspace finalization, validate streamed archives within bounded limits, and quietly recover unsafe exports from saved results. Preserve exact allocations for exhausted transient failures and provide export-only retry without rerunning the provider.

Consolidates #14314, #14315, #14329, and #14334 while preserving the already-merged finalization label changes.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-09-28 10:57:32 -05:00