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Author SHA1 Message Date
DottaandPaperclip 09ad9adce2 feat(server): adopt running remote agents through durable controller checkpoints (#17439)
## Thinking Path

> - Paperclip must keep admitted remote work alive while its main server
is replaced.
> - Runner owns recovery mechanics and exposes opaque checkpoints
through #17097.
> - The server owns company scope, encryption, Stop, tool authority and
execution ownership.
> - A successor must prove current ownership before it adopts the
original execution.
> - Checkpoint bursts must also leave capacity for normal requests and
lease renewal.
> - This PR persists and adopts that authority through the existing
runtime boundaries.

## Linked Issues or Issue Description

**What existing behavior does this improve?**

Remote agents retain the original execution during a bounded main-server
outage.

**Current behavior**

A server restart can lose the controller's local state and connection.
An unsafe replacement could repeat a turn or an uncertain mutation.
Checkpoint writes in the request pool can also delay ordinary requests
during an aligned burst.

**Proposed behavior**

Restore encrypted control records from Postgres and adopt the original
runner under a fenced lease. Recover known tool receipts through current
tool authority. Give control checkpoints a shared pool capped at two
connections per database owner.

Depends on #17097. Successors are #17455 and #17456. Qualification and
presentation remain separate review slices.

## What Changed

- Add company/run-bound encrypted checkpoint records and migration 0394.
Keep the SQL idempotent after renumbering against current master.
- Recover startup and expired ownership through native runtime and
heartbeat. Preserve the sandbox lease, admitted runner artifact, harness
configuration, native session and active turn.
- Keep Stop, finalization, preparation ownership and stale-writer
fencing transactional. Preserve graceful detach and natural crash
takeover.
- Recover committed tool receipts through the existing authority.
Reauthorize reads and hold uncertain mutations.
- Bound startup retention with the existing coordinator and preserve
zero idle scans.
- Share at most two checkpoint connections per database client. Keep
application and liveness capacity separate. Close the checkpoint pool
during shutdown; late writes cannot reopen it.
- Count SQL across both application and checkpoint clients. Prove
request/liveness progress, command recovery and failure after pool
shutdown with real Postgres.

## Verification

Project creation recovery now uses the existing project activity receipt
owner. It retains authenticated input normalization, fingerprint checks
and current run authority after the receipt lock. An absent receipt
returns no result before mutation. The new lost-HTTP-response and
no-effect regression uses real API routes and Postgres. The seven
transport cases pass locally. This Mac skips all 20 database cases. On
current source `5de803c2cd`, Linux [job
122593415890](https://github.com/paperclipai/paperclip/actions/runs/40620576702/job/122593415890)
executes all 20 project-tool cases successfully (9.480 seconds),
including the committed-project lost-response regression. Its shard
passes 1,627 cases with three unrelated skips. Server typecheck passes.
The transport regression initially has two failures; a subsequent
incorrect expectation about schema defaults was corrected before the
final pass. Ordinary execution adds no checkpoint writes or recurring
work.

Current candidate `5de803c2cd` includes the project-creation receipt
recovery fix and master `2cd747d1b6`. Migration 0394 retains the prior
idempotent checkpoint DDL. Every master SQL file and journal entry is
preserved. Snapshots 0390–0394, migration checks and server typecheck
pass.

The ordinary warm-turn regression fails on its second turn before
`a219ab51ad`. After correction, three completed warm turns select the
correct prior checkpoint and preserve the original session. All 288
provider-wiring cases pass. The control plane, external persistence
callback, identity rotation and filesystem are real; the backend and
database-load seam are scripted. The 13 warm admission/configuration
variants also pass after final master integration. This does not qualify
an underlying harness.

At current source `5de803c2cd`, Linux [job
122593415907](https://github.com/paperclipai/paperclip/actions/runs/40620576702/job/122593415907)
passes all 940 native-session-executor cases (61.431 seconds), including
the warm external-checkpoint behavior; the shard passes 2,358 cases with
one skip. Current [Runner job
122593415475](https://github.com/paperclipai/paperclip/actions/runs/40620576702/job/122593415475)
passes the native recovery lane: 115 passes and five container-only
skips, including the encrypted restore guard, fresh preparation (63.189
seconds), blocked claim lock (1.226 seconds) and recovery beyond 101
blocked owners (3.897 seconds). The first lane passes 2,215 cases with
one skip. The SQL cost test reports zero idle and streaming SQL for both
output volumes; this is component evidence, not a production capacity
claim. At prior candidate `1ff7bb44f4`, Linux job 122549307215 passes
all 938 native-executor cases, including the three-turn
external-checkpoint regression. Job 122549306469 passes the native
recovery lane with 115 passes and five container-only skips, including
the encrypted-restore session guard, fresh preparation (63.664 seconds),
claim-lock contention (3.961 seconds), and 101-owner recovery (3.824
seconds). This Mac skips the real-Postgres suite. The earlier full local
executor attempt has 921 passes and 16 failures during embedded-Postgres
initialization before assertions. The original fixture collisions and
their corrections remain recorded.

At earlier candidate `8fbe62b41d`, server shard job 122535673841 has
3,876 passes, one failure and one skip in an unchanged expiry-worker
retry/drain timing test. The same server/database tree on qualification
source `b64cac6951` passes all 20 expiry cases and all 3,877 shard
cases. The single diagnostic retry, job 122541891915, passes all 20
expiry cases and all 3,877 shard cases (one skip). No assertion was
weakened. The original failure remains recorded and its exact timing
race is not proven. All Actions checks and legacy status passed on
`8fbe62b41d`, with completed Greptile 5/5 and no open feedback. The next
candidate `1ff7bb44f4` also passed all Actions checks and Greptile 5/5.
Its Paperclip Review remained queued before the new master conflict
required integration. The new candidate needs fresh exact-head CI and
reviews; old checks do not qualify it. Migration generation is
checkpoint-only, all master SQL and journal entries remain unchanged,
and migration checks, server typecheck and all 13 warm-owner variants
pass after integration. The first migration check was blocked by TSX
sandbox IPC; its permitted repeat passes. The first warm-test command
used an incorrect path and ran no tests; the corrected command supplies
the 13-case receipt.

All 16 database pool-lifetime/options/teardown cases pass after granting
loopback permission; the first batch had two EPERM failures and 14
passes. Earlier semantic-tool/HTTP recovery, adoption, encryption-batch,
zero-streaming-write and idle-SQL receipts remain source-attributed in
the [qualification
record](https://github.com/paperclipai/paperclip/blob/2ff66f57da0da35bac1c19a2366ea4b84d87a986/doc/plans/2026-10-22-hot-upgrade-qualification.md).
That record retains earlier assertion, setup and cleanup failures and
their corrections. No failed gate is waived.

The historical 300-session component campaign passes four after phases:
steady read p99 is 107–108 ms at 500 reads/s and 100 writes/s;
aligned-burst read p99 is 103–105 ms after the bounded pool, versus
584–689 ms before. This comparison isolates the persistence corrections.
It does not measure the final stack's hosted active-agent capacity. The
hosted zero-agent API pair leaves SQL and CPU essentially unchanged, but
both arms fail absolute latency gates and candidate peak cgroup memory
fails its gate. The active-agent/viewer matrix, different-artifact
upgrade and rollback remain open.

Run `PAPERCLIP_TEST_DATABASE_URL=<owned-disposable-postgres> pnpm
--filter @paperclipai/server exec vitest run
src/services/native-runtime/native-runner-restart-recovery.integration.test.ts`.

Previous head `f2db8a6568` had one failed workspace setup gate: [job
122555672441](https://github.com/paperclipai/paperclip/actions/runs/40608984238/job/122555672441)
passes all 4,169 UI tests and 285 CLI cases (one skip), but the company
import/export suite reaches its 30-second health deadline during doctor
startup. Its output does not reach the server-start step. The CLI,
server, database, shared, adapter and plugin trees are identical on
qualification source `a866619d7b`, whose [job
122555886663](https://github.com/paperclipai/paperclip/actions/runs/40609057937/job/122555886663)
passes that fixture and all 286 CLI cases. The one diagnostic retry,
[job
122561057225](https://github.com/paperclipai/paperclip/actions/runs/40608984238/job/122561057225),
passes the formerly failing fixture and all 286 CLI cases. All Actions
checks and legacy status on `f2db8a6568` pass. Its exact-head Greptile
completed at 5/5 with no open feedback. The current integrated head
requires fresh checks and a completed Paperclip Review before merge. The
original failure remains recorded; its exact timing cause is unproven. A
repeated failure requires investigation and repair rather than another
retry.

All current-head CI, legacy status, exact-head completed Greptile 5/5,
resolved feedback and ordinary GitHub merge eligibility remain required
before merge.

The latest integration preserves master’s published Copilot v70 profiles
and every published migration. Checkpoint migration
`0394_conscious_whizzer.sql` was generated with `pnpm db:generate` and
retains the prior idempotent DDL. The Runner vendor rebuild and replay
parity checks pass. Server typecheck and all 13 warm-owner variants pass
after that rebuild. The imported report-lock patch is byte-identical to
master; its intentional patch-context whitespace is retained, and the
feature delta passes whitespace checks. No hosted experiment was run.

## Risks

The pool adds up to two active connections per instance, shared across
agents. Checkpoint delivery can wait behind that bound; it still
requires its commit. Steady component-test Postgres CPU rises by about
1.7 percentage points of a two-CPU allocation. These corrections do not
remove the stack's control and renewal writes. The migration and key
must survive replacement. Fresh-database tests and local load do not
establish different-artifact hosted upgrade or rollback continuity.

## Model Used

OpenAI GPT-6 through Codex, with reasoning, repository tools and code
execution. The runtime does not expose a more specific model ID or
context-window size.

## 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
- [ ] 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
- [ ] All Paperclip CI gates are green
- [ ] 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>
2026-10-27 21:39:23 -05:00
DottaandPaperclip 94e8dec56b fix(runner): preserve tool outcomes through shutdown and restart (#14734)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work.
> - The runner sends authorized tool calls to the server and saves their
results.
> - A provider turn can stop while a server write is still running.
> - The old shutdown path invented a failed result that could conflict
with the real result.
> - Truncated execution input and incomplete recovery records made the
failure harder to diagnose.
> - This pull request preserves exact inputs and actual outcomes through
shutdown and restart.
> - Tests force the race and crash boundaries so safe retries do not
repeat writes.

## Linked Issues or Issue Description

**What happened?**

Stopping a turn during a server tool call could record a false failure,
then reject the actual result as a conflict. The diagnostic input
formatter could truncate instruction content before execution. A crash
during saved-result delivery could leave that delivery permanently
indeterminate. Cleanup could hide the first failure, and a retry could
overwrite earlier run logs.

**Expected behavior**

Keep dispatched tools pending until their actual result is known.
Preserve accepted input bytes. Accept identical result delivery without
failing the task. Reject conflicting results with enough evidence to
diagnose them. Recover saved-result delivery without repeating the
business operation.

**Steps to reproduce**

1. Hold an instruction update at the filesystem commit barrier.
2. Stop its provider turn before the server returns the result.
3. Release the write, deliver its result, and replay the same result.
4. Repeat with a restart before and after the delivery receipt is saved.
5. Check that there is one write and one audit row, and that the exact
result survives.

**Paperclip version or commit**

The change was developed from `44736c9c7` and rebased onto `0e5830887`.

**Deployment mode**

Self-hosted server with the native runner. Tests use local runner
processes, scripted providers, and PostgreSQL.

Related work: #12353 added durable semantic tool receipts; #12384 added
durable Codex tool recovery; #12404 bound semantic tools to ACPX
sessions. #14633 covers separate native-provider cancellation and
qualification work. This PR addresses server semantic-tool outcomes and
their durable delivery. No duplicate fix was found. AgentMail discovery
is outside this PR.

## What Changed

- Close turn admission without inventing results for dispatched tools.
Keep pending calls and accept late actual results.
- Accept identical result replay with a diagnostic warning. Include call
identity and both result hashes in real conflict errors.
- Preserve exact execution arguments. Reject prohibited or oversized
input before dispatch. Keep diagnostic previews redacted and bounded.
- Commit instruction-attempt evidence before the filesystem write. Save
completed mutation receipts so concurrent and restarted duplicates
return the first result. Recheck authorization before replay. An attempt
without a completed result stays unknown and cannot execute again.
Definite pre-write failures save and replay their original error without
another write.
- Recover an interrupted saved-result delivery only for backends with
durable result receipts. Never replay an ordinary business operation
with an unknown outcome.
- Preserve the initiating error when cleanup also fails. Record
incomplete settlement evidence. Propagate typed unknown-outcome errors
through the native tool wrapper without creating a false completed tool
result.
- Append run-log attempts and restore the durable log before appending
after local file loss. Reject incomplete restores. Publish a restored
prefix only if the destination is absent so concurrent attempts cannot
overwrite new lines.
- Add deterministic race, crash, replay, authorization, exact-content,
and log-restoration tests. Document their assertions in
`packages/paperclip-runner/docs/durable-recovery.md`.

## Verification

- Current head: `7e088f4c7fba8ebabf98ae95485a5753b013d489`. All 55
applicable checks pass; four conditional/manual checks are skipped. This
includes build, typecheck, Rust, both runner TypeScript shards, server
and workspace tests, all eight browser shards, isolated runner
compilation, and the clean-install release dry run. [CI
run](https://github.com/paperclipai/paperclip/actions/runs/36746101110).
- Greptile reviewed this exact head at 5/5 with zero new findings. All
three earlier review threads are resolved.
- Focused local verification includes 11 instruction integration tests,
23 surrounding authority/tool tests, 26 run-log tests, and 169
controller/driver tests. The post-rebase controller/transport/runtime
selection passed 415 tests. The full Rust release suite passed 617 tests
with two ignored. The real-process SIGKILL recovery test passed three
consecutive runs.
- The fault matrix in
`packages/paperclip-runner/docs/durable-recovery.md` uses explicit
barriers, real PostgreSQL rollback, durable journal reloads, and killed
runner processes. It covers late results, identical and conflicting
replay, exact long content, concurrent log restoration, lost commit
acknowledgements, and definite failure replay after the original CAS
base becomes valid again. No paid model calls are needed.
- Full local recursive typecheck and build passed during implementation.
Server typecheck and the runner TypeScript build passed after the review
fixes. The broad local repository test run was stopped after repeated
database startup timeouts. Four timing/launch failures in an earlier
broad runner run passed focused reruns without changed assertions or
timeouts. These are local verification limitations; the complete
current-head CI suite is green. An earlier CI workspace job received an
infrastructure shutdown signal; its current-head replacement passed.

## Risks

- A stopped turn can remain blocked when a dispatched operation has no
proven result. The system does not guess its outcome or rerun its
effect.
- Conflicting results still fail settlement. Existing failed or
conflicting journals are not repaired automatically.
- Accepted semantic input is limited to 480 KiB of encoded JSON to fit
the encrypted transport. Larger input fails before execution.
- Instruction filesystem writes and database receipts are not one atomic
storage operation. A separately committed attempt and audit record
survive rollback. An attempt without a completed success or definite
pre-write failure receipt remains blocked as an unknown outcome. It is
not replayed or reported as success.
- Run-log restoration now reads the durable object before appending when
the local log is missing. Failed or incomplete reads reject the append.
- No schema migration, dependency change, workflow change, or AgentMail
change is included.

## Model Used

OpenAI Codex, GPT-6, with reasoning, tool use, code execution, and test
analysis. The exact served model ID 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 (focused suites; the broad
local run limitation is recorded above)
- [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>
2026-09-30 11:54:56 -05:00
DottaandFry 3ca196b0a6 feat(agents): persist agent files across tasks without revision history (#14420)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work.
> - An agent needs personal files across tasks and sessions.
> - AGENTS.md is one file in that directory. Supporting files need the
same persistence.
> - The Instructions Editor and agent runs must share one current
directory.
> - Concurrent runs should apply only the files they change. The last
sync of the same file wins.
> - This pull request uses existing file transport and removes temporary
copies after sync.
> - Old instruction-only sessions keep their restore contract. New saves
do not create revision history.

## Linked Issues or Issue Description

Refs #14325. This replaces its revision-oriented design with persistent
agent files. Keep #14325 unmerged.

Transport prerequisite #14416 merged first at
`d172197117a14b80a1eb2d2835a0e7cce2679656`. This PR now targets master
and remains below 100 changed files.

Related work: #4513 and #8798 cover instruction tooling. This change
handles run synchronization, cross-task personal files, browser editing,
and old-session restoration.

## What Changed

- Keep one current directory per company and agent. Point AGENT_HOME at
a temporary working copy for each active run. Keep task files and
provider HOME separate.
- Restore text, binary files, and nested folders through workspace
transport. Exclude remote agent files from task Git snapshots with a
self-ignoring file inside the reserved runtime directory; never write
through repository-controlled Git metadata.
- Collect after the provider and child processes have stopped. Keep
resumable conversation state.
- Apply changed and deleted files under the agent lock. The last sync
wins for the same file. Unrelated concurrent changes survive.
- Remove temporary copies after successful sync, rejected sync, and
staging failure. Register ownership before copying so restart recovery
can remove interrupted preparation. Retry transient synchronization up
to three times. Preserve the original remote lease reference until
deletion succeeds; restart cleanup never acquires a replacement sandbox.
Do not create captured directories or a conflict-review queue for new
runs.
- Keep browser editing, stale-draft protection, and streaming binary
downloads. Keep the instruction entry and text editor limited to 1 MiB.
- Keep historical agent-folder sync failures on their affected runs
instead of repeating them above current saved instructions. Preserve
legacy candidate review and current browser-save errors. Avoid duplicate
quota warnings while retaining separate sync failures when they describe
a different problem.
- Require target-scoped caller grants for peer instruction access, while
preserving self edits, responsible-user checks, and protected-change
consent.
- Treat full storage as a nonblocking run warning, never an agent pause
or run-admission failure. Restore already-over-quota saved folders so
ordinary agent cleanup can recover; warn on each run until cleanup. The
run detail view shows the warning.
- Allow 256 MiB per file, 2 GiB per directory, and 100,000 entries. Hash
large files as streams. Check editor-save quotas with metadata instead
of hashing unrelated files.
- Preserve old native inputs, instruction-only copies, paths, digests,
and pending legacy candidates. Adopt old revision heads once. New writes
do not append history rows.
- Add idempotent migration 0287 and verify upgrades from the preview
tables and receipts.
- Add nine interactive stories under **Agents / Persistent files**,
including automatic incoming edits, stale browser drafts, and
storage-limit diagnostics.

## Verification

- Merge candidate: `4f5390107ec6ffd80a76d1d2e85530e66f21d079`, after
merging current master and the landed transport prerequisite.
Integration required no manual conflict resolution; the feature remains
99 changed files. Full workspace typecheck, production build, token
gates, and 715 focused tests passed on this merge candidate. Fresh
Greptile review is 5/5 with no unresolved findings. All 55 checks
passed, with four conditional skips, including the build, typecheck,
browser E2E, and canary dry run. A single retry recovered four jobs
interrupted by runner shutdowns; no source changes were required.
- Historical-warning UI fix: all 6,834 UI tests across 640 files passed,
including regression coverage for three old failures, legacy preserved
edits, and warnings scoped to the affected run. Full workspace
typecheck, production build, Storybook build, and token gates passed.
Browser-verified Storybook playtests passed for Historical Failures
After Successful Save, Storage Limit, and Full Storage Run Warning.
- Review follow-ups at `4e20c9fb2`: all 18 focused tests passed,
including external Git directories, linked worktrees, symlinks,
hardlinks, and distinct I/O failures alongside storage warnings. Server
and UI typechecks, token gates, and the production build passed.
- Storage warning regressions at `0724f3012`: all 33 directory tests and
all five heartbeat-list tests passed, with no skips in their successful
runs. They cover repeated runs while full, an already-over-quota saved
folder, cleanup, warnings retained after unrelated save failures, and
bounded warnings in large result JSON. Server typecheck passed after the
final warning fixes.
- Full workspace typecheck, production build, and token gates passed
during this follow-up. Product E2E harness: 631 tests passed across 52
files; harness typecheck passed. Earlier native session/context and
directory/legacy collection suites passed 537 tests; Runner
unit/transport suites passed 329 tests.
- **Real E2E at `0724f3012` (before this follow-up):** legacy local
Codex and native Daytona Codex each passed six tasks, one server
restart, seven independent assertions, and cleanup verification. Both
prove browser-to-agent edits, agent-to-browser edits, nested/binary
restoration, per-file last-sync-wins, a successful run after an
oversized save rejection, and cleanup clearing the warning.
- Native local Codex also passed the six-task quota flow before the
final warning-retention fixes. That pass began at `918d1ed02` while the
bounded-result warning fix was being edited, so it is not claimed as
exact-final-head evidence. Its final-head rerun failed during embedded
PostgreSQL bootstrap before any provider run: the macOS host had 87,365
of 87,381 SysV semaphores occupied. No unrelated services or kernel
limits were changed.
- The final-source report intentionally records **2/3 cells passed**,
preserving the blocked native-local attempt:
`tests/runner-e2e/results/agent-files-quota-final-20260928-report/`.
Earlier failed attempts and provenance notes remain under
`tests/runner-e2e/results/agent-files-quota-final-20260928-input/` and
the original campaign directories.
- Daytona used immutable image
`ghcr.io/paperclipai/paperclip-daytona-runner@sha256:5643f0d801417cae3581833a1a3bc6715b325e028602738d2652c44cac5dc6bf`
and its exact Linux runner binary. Controller source is `0724f3012`;
image source is recorded separately.
- Legacy-session compatibility and all three ACP Stop/resume browser
regressions passed on the prior validated feature head
`169fab46d5af21caa2269b4c1b29b69c933a6951`. They assert the same
provider session is retained and interrupted writes are not replayed.
Migration upgrade tests also passed earlier.
- Nine interactive stories are under **Agents / Persistent files**,
including **Full Storage Run Warning**. Its playtest and visual browser
inspection passed; the warning states that runs continue and the editor
remains available.
- Prior-head checks on `4e20c9fb2`: 55 passed, two conditional jobs
skipped, no failures or pending checks. All eight browser E2E shards and
their aggregate passed. Fresh Greptile review is 5/5 with no findings;
all review threads are resolved, the security scan passed, and GitHub
reports no merge conflicts.
- The broad local follow-up test run was interrupted after host
semaphore exhaustion affected isolated PostgreSQL instances. It also
encountered the existing macOS long-path fixture failure and two timeout
failures. This is not a claim that the full local suite passed. Logs are
retained; focused storage/warning tests passed.

## Risks

- A later sync can overwrite an earlier edit to the same file, including
a saved browser edit. There is no text merge or retained version. This
is the intended last-sync-wins policy.
- A save that exceeds a storage limit is rejected and its temporary copy
is discarded. The run itself continues normally, and later runs restore
the last saved files with a warning until cleanup. Transient sync
failures get bounded retries. An I/O failure partway through a sync can
leave some files updated; a failed receipt does not claim whole-folder
success.
- Larger folders increase copy time, network traffic, and temporary disk
usage. Active runs still need working copies. Terminal runs do not
accumulate archives. Operators must provision disk for agents and
configured concurrency; these limits are not company-wide quotas.
- A restored old native session remains instruction-only until a fresh
session starts. Its original conflict fence and existing pending
candidates remain compatible.
- Provider processes close at the collection boundary. Conversation
resume remains available, but warm process reuse is lost.
- Backups must include the instance filesystem and database. External
bundles keep their existing behavior until explicitly moved to managed
storage.

## Model Used

OpenAI Codex, GPT-6 family. The session does not expose a more specific
model ID or context-window size. Reasoning, code execution, and browser
tools assisted this change. Real provider E2E uses `gpt-5.6-sol`.

## 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

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Co-authored-by: Fry (Paperclip) <noreply@paperclip.ing>
2026-09-29 08:25:56 -05:00