## Thinking Path
> - Paperclip is the open source app people use to manage AI agents for
work.
> - Agents use governed API tools to inspect task evidence.
> - Large API results become saved assets with short previews.
> - Reading an asset through the same tool used to create another asset,
so the agent could not reach the rest of the evidence.
> - The 10 MiB response cap also blocked useful large results. Removing
all bounds allowed excessive disk use.
> - This pull request streams responses up to 1 GiB and makes saved text
readable in bounded pages. It adds durable run budgets and capture
admission limits.
> - Agents can inspect complete evidence while tool results, memory use,
and capture work stay bounded.
## Linked Issues or Issue Description
**What happened?**
A large response became an asset. Reading that asset returned another
asset and the same preview. Responses above 10 MiB failed before the
agent could read any page.
**Expected behavior**
The agent can fetch a large response and read its saved text to EOF.
Each page stays bounded. New snapshots have a generous finite limit and
a durable run budget. Existing larger assets remain readable through
byte ranges.
**Steps to reproduce**
1. Call a GET operation that returns more than 10 MiB of text or JSON.
2. Before the fix, the tool returns `api_transport_failure`.
3. With this change, responses up to 1 GiB become streamed snapshots
with artifact references.
4. Read `GET /api/assets/{assetId}/content` with `responseText:
{offsetBytes: 0, limitBytes: 8192}`. Follow `nextOffsetBytes` until
null.
Related work: #14186 added the API fallback tools. #14218 bounded API
discovery.
## What Changed
- Add authenticated UTF-8 text windows to `call_api`, with byte offsets
and total size. Keep each page at or below 24 KiB.
- Stream new responses above 24 KiB through private temporary files into
company-owned assets. Bound each capture to 1 GiB of decoded bytes.
Reject oversized declared lengths before reading and count streamed
bytes before writing.
- Reserve capture budget in the run record before spilling. Allow 4 GiB
per run. Settle successful captures to their actual size. Failed or
interrupted captures retain their full 1 GiB reservation. Run restarts
do not reset the budget.
- Enforce a 20 GiB company snapshot quota with database reservations.
Count legacy snapshots and unfinished storage work across runs and
processes. Asset deletion frees quota.
- Limit large captures to two per company and four per server process.
Hold slots through storage upload and temporary-file cleanup. Use a
10-minute download deadline and 30-second connection/idle-read timeouts.
- Return explicit size, budget, busy, and timeout errors. Preserve
unknown outcomes for mutations whose response cannot be captured.
- Read saved assets through authenticated storage ranges, with at most
two extra bytes for UTF-8 and EOF handling. Unpaged reads return the
existing asset and digest with a bounded preview. Reads create no copies
and do not consume capture budget.
- Keep existing assets above 1 GiB readable in pages. Use safe integer
offsets and PostgreSQL `bigint` asset sizes.
- Stream large S3 uploads through ordered multipart requests. Abort
failed uploads and remove partial local files.
- Revalidate run authority during downloads. Keep company authorization,
GET-only text paging, redirect denial, and mutation replay receipts.
- Document the separate 10 MiB upload limits. This PR does not raise
memory-buffered attachment ingestion limits. Future large video uploads
need streamed ingestion and storage quotas.
## Verification
- Full workspace `pnpm -r typecheck` and `pnpm build` pass after
rebasing on master.
- Focused API and response tests: 1,761 pass. Cover declared and chunked
oversize responses, incorrect Content-Length, exact-limit success,
active-stream deadline, cancellation, cleanup, concurrency admission,
and mutation outcome handling.
- Real HTTP integration: 28 tests pass, including runnerd → PRP →
authority → HTTP, a 12 MiB snapshot, final-page/EOF reads, cross-company
denial, a persisted 3 GiB sparse asset, and large mutation receipt
replay.
- The HTTP suite verifies durable run-budget accounting, simultaneous
runs competing for company quota, legacy snapshot accounting, deletion
refunds, failed-storage reservations, cleaned-failure refunds,
metadata-rollback cleanup refunds, preservation after a lost commit
acknowledgement, and small/saved reads after capture-budget exhaustion.
- A standalone proof streams exactly 1 GiB through the production
capture helper, verifies the final bytes, and removes its temporary
file. It uses repeated 256 KiB chunks and records a peak process RSS of
191 MiB.
- Earlier storage verification covers exact S3 multipart boundaries,
cleanup/abort failures, and a 17 MiB transfer through the real AWS SDK
to a local HTTP S3 endpoint. No cloud S3 qualification was run for this
follow-up.
- The local full test run was interrupted for the company-quota changes.
A later targeted run hit exhausted macOS shared-memory slots before
tests started; two unattached PostgreSQL segments with dead owners were
reclaimed before retrying. All 55 current-head checks pass at
`aebb80ceeeee77d5a56b67bfffd835f2f846878c`, including the full CI test
suite, typecheck, build, browser suites, security scan, and Greptile
(5/5). There are no unresolved review threads. The combined rebased test
catalog also passes (48 tests).
- Earlier paging acceptance passed Daytona and separate staging at
`7739879e9`. Those runs predate the streaming and budget changes.
## Risks
- The 1 GiB response cap and 10-minute active-download deadline are
intentional product limits. Larger live results must use endpoint
pagination or a direct file workflow. Existing larger assets remain
readable through bounded ranges.
- A durable 20 GiB company snapshot quota counts stored runner-api
assets and active/orphan reservations across runs and processes. The
operator can set PAPERCLIP_RUNNER_API_COMPANY_CAPTURE_MAX_BYTES to a
finite value of at least 1 GiB. Deleting snapshots frees capacity;
possible orphan storage must be reconciled before releasing its
reservation.
- A failed capture uses its full reservation. A new large capture needs
a full 1 GiB available, even if it later completes at a smaller size.
Small reads and existing asset pages remain available.
- Concurrency limits apply per server process. The run byte budget is
shared through the database.
- The `integer` to `bigint` migration rewrites asset metadata and takes
an exclusive table lock. File bytes stay in storage.
- A live endpoint is fetched once before returning its snapshot.
Continue reading the saved artifact for stable pages. Mutations may
commit before any size or transport error; inspect state before
retrying.
- Attachment uploads and native file handoffs still default to 10 MiB.
Raising buffered ingestion paths to GiB sizes is separate work.
## Model Used
OpenAI Codex, based on GPT-6, with code execution and repository tools.
The runtime does not expose an exact serving model variant or
context-window size. The earlier paging work also used browser testing
and subagents.
## 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>
14 KiB
Paperclip evaluation guide
Paperclip has two live eval families with different questions, owners, and evidence. Choose the family before selecting a model, profile, or case.
- Runner Evals: real Runner/provider behavior against a seeded mock control
plane. Definitions live in
paperclip-evals/evals/paperclip-runner; see the direct live protocol evals. - Product E2E Evals: real browser, Paperclip server, database, Runner,
provider, and (where selected) Daytona, using an isolated instance and
grading oracle. See
tests/runner-e2eand Everyday Workflows.
Runner Evals answer whether a real runner/provider can perform a bounded protocol operation against the expected control-plane contract. Product E2E Evals answer whether a person can complete a product workflow through the real Paperclip surfaces and whether the resulting artifact and state are usable. The names describe the system under test; “headless” is an execution option, not an eval category.
The explicit Product E2E completion-updates suite compares onboarding and
idle Agent Chat handoffs on native Claude/Codex. It separates mechanical
completion delivery/result access from semantic review of the retained answer;
see the probe contract.
Selecting a family
Use Runner Evals for a runner protocol, adapter, transport, native session,
tool grant, or one-turn provider qualification question. The workflow checks
out an exact paperclip-evals revision, builds the Runner and viewer, runs a
live roster, and renders the canonical Evalbook report. The control plane is a
seeded test authority, so a passing result does not prove browser UX, production
server behavior, database persistence, Daytona behavior, or a real third-party
mutation.
Use Product E2E Evals for browser interaction, issue/task lifecycle, approval and clarification UI, project/repository selection, persistence over a controller restart, artifact delivery, billing/evidence behavior, or runner continuity in local or Daytona environments. The harness creates a fresh Paperclip instance per cell and uses public APIs and the production browser surface. The suite's Everyday Workflows are Product E2E even when their results are imported into Evalbook.
Do not combine a partial Runner campaign and a partial Product E2E campaign into one score. A campaign is comparable when its definition/grader, model/profile, environment, and contract match. The evaluated Paperclip revision may intentionally differ for a before/after fix comparison; record it as a comparison axis.
Ownership and codepaths
Runner Evals are owned by the Runner/evals maintainers. Definitions, rosters,
case prompts, and the report program live in the sibling private repository
paperclipai/paperclip-evals; Runner integration, viewer, aggregation, and
publication code live under packages/paperclip-runner and the
runner-protocol-live-evals.yml workflow. The public-facing report uses the
same Evalbook renderer and Runner Lab viewer as the trusted report after
sanitization.
Product E2E Evals are owned by the runner E2E maintainers. The catalog and
harness are under tests/runner-e2e; the package scripts are test:e2e:runner,
test:e2e:runner:unit, test:e2e:runner:typecheck, and
test:e2e:runner:report. README.md, FIXTURES.md, SECURITY.md, and
EVERYDAY-WORKFLOWS.md are the detailed sources of truth. The harness starts
the server and embedded database, creates the company/agent/task through the
real APIs, drives Chromium, and invokes the selected local or Daytona runner.
The explicit-only agent-chat-hardening Product E2E suite covers native chat
recovery, hiring, status evidence, and review handoff on local and selected warm
Daytona paths. Its fixture contract distinguishes
startup cancellation from active response cancellation and HTTP send replay
from ambiguous provider action recovery. Select it explicitly; --all excludes it.
The explicit-only agent-chat-stories suite covers the experimental settings
lifecycle for a configured native agent and follow-ups during active work. Its
fixture-driven file wait and persisted-plan oracle are documented in the
Product E2E guide. It does not qualify the native
onboarding wizard or change the native API-tool rollout defaults.
Validation ladder
Start with credential-free checks and a catalog listing. For Product E2E:
pnpm test:e2e:runner:typecheck
pnpm test:e2e:runner:unit
pnpm test:e2e:runner -- --list
For one explicitly selected local cell, configure only the credentials named
by that cell in .env.runner-e2e.local, then run a narrow ID:
pnpm test:e2e:runner -- --id core-compatibility.runner-codex.local.message-marker
Use the selectors documented in the runner E2E README
for a suite, profile, case, group, or environment. Daytona needs the immutable
image digest and DAYTONA_API_KEY; follow the README and fixture security guide.
--all excludes manual suites such as everyday-workflows. Select that suite
explicitly; use a narrow selector while developing a fixture.
For Runner Evals, the narrowest useful local validation is the report program's
help/validation path and the deterministic Runner checks documented in
runner-workflow-evals.md.
Hosted direct live runs must use the default-branch workflow, an exact 40
character evals_sha, an explicitly selected roster (or the maintained
enabled all campaign), and the protected paid environment. The complete
hosted command is intentionally kept in the workflow and
direct live protocol guide.
Live provider runs can spend money; use the existing workflow authorization and
the user's stated scope when selecting them.
Failure taxonomy
Record the primary failure class and preserve the evidence that supports it.
- Product failure: evidence shows Paperclip or Runner behavior violates the authored case or a hard invariant, such as wrong task state, missing approval gate, lost persistence, bad artifact, or incorrect protocol operation.
- Model/provider behavior failure: the provider turn completed with usable evidence but the model gave the wrong answer, ignored an interaction, failed to complete the authored operation, or violated a semantic assertion. It is scored as behavior, not silently retried as infrastructure.
- Grading/evidence failure: the case or matcher cannot establish its claim, a required recording/screenshot/result is malformed, or the report contract is invalid. Fix the harness or grader before interpreting the score.
- Infrastructure failure: the evidence points to provider/profile unavailability, transport admission failure, service startup failure, a missing credential/image, or inability to produce usable evidence. Startup, transport, and timeout symptoms can instead be product defects when evidence implicates Paperclip or Runner; classify from the observed failure and supported cause, rather than the symptom name alone. Preserve the artifact.
Missing usage or price data means unknown, not free. Keep provider-reported costs separate from estimates, and include retry costs when available. Latency, cleanup, billing coverage, and unpriced usage are dimensions of the result and should remain visible alongside the primary class. A timeout after successful product state reads can be a product behavior failure; a failed server-health read may be infrastructure, but inspect its cause. Use the family-specific classifier and read the attempt evidence before changing an analytical label.
Evidence, provenance, and history
Retained result snapshots and dated measurement reports belong in
paperclip-evals; application tests, Product E2E fixtures/graders, and executable
scenario inventories remain in this repository. Keep a compact results index
with immutable archive links and public report links, as in the
lifecycle baseline.
The private archive is not a dependency of app test execution. Keep large logs,
traces, and videos in the existing campaign artifact storage.
An Evalbook report is a presentation of immutable attempt records, not the
source of truth. Keep the campaign ID, Paperclip commit, paperclip-evals
commit, catalog/roster or definition fingerprint, model/profile, environment,
grader version, selected cells, retries, and provider/runtime usage with the
report. Public projections follow each family's reviewed allowlist and may
include sanitized fixture conversation, named tool outcomes, screenshots, and
structured evidence intended for public history. Credentials, secrets, private
data, raw unredacted records, and hidden reasoning stay out of public
projections.
Distinguish a complete campaign from a partial campaign. A narrow selector, manual diagnostic, missing cell, or infrastructure retry can be useful evidence without being a qualification run. History should retain both, with explicit coverage and completeness, while trend and latest-green views compare only compatible complete campaigns. Refreshing an existing report from retained evidence has zero provider calls and is a new presentation of the old measurement, not a new model run.
Existing public histories are available at Runner protocol history and Runner Product E2E history. The consolidated eval hub is at pages.paperclip.ing/evals.
For a repeatable workflow, use the matching skill: paperclip-evals, add-runner-eval, or add-product-e2e-eval.
Install the authoring skills
The reviewable sources live in this repository's .agents/skills. For a
multi-repository workspace, install the three skills at
~/paperclipai/.agents/skills (not ~/paperclipai/skills). From the Paperclip
checkout, run:
for skill in paperclip-evals add-runner-eval add-product-e2e-eval; do
install -d "$HOME/paperclipai/.agents/skills/$skill"
install -m 644 ".agents/skills/$skill/SKILL.md" \
"$HOME/paperclipai/.agents/skills/$skill/SKILL.md"
done
This replaces only the three named skill entrypoints. Run it again after updating their tracked sources. Each skill locates the repository independently of its installation directory.
Maintain the public hub
The hub is a static directory with two links to the existing history systems. It displays a dated snapshot, not a live scoreboard. It does not run models, create another result archive, or change the existing campaign URLs.
Build from the public history feeds and check its summary logic:
python3 -m unittest discover -s scripts/evals-hub -p 'test_*.py'
python3 scripts/evals-hub/build.py --output .paperclip/evals-hub
The hub checks need Python 3 and do not call model providers.
For offline checks, pass --history-dir <directory> containing
runner-protocol-evals-history.json and runner-e2e-history.json.
For a pre-merge preview, pass --docs-ref <branch-or-sha> to link the guide
at that revision. The default guide link uses master.
Publish with the Paperclip page helper
and the configured page-uploader credentials. Use Bash 4 or newer; macOS's
system Bash 3 cannot run this helper. On macOS with Homebrew Bash installed,
put $(brew --prefix bash)/bin first in PATH before these commands:
export PAPERCLIP_PAGE_BUCKET=pages.paperclip.ing
export PAPERCLIP_PAGE_BASE_URL=https://pages.paperclip.ing
export AWS_REGION=us-east-1
bash .agents/skills/paperclip-page/scripts/publish.sh .paperclip/evals-hub --slug evals --dry-run
bash .agents/skills/paperclip-page/scripts/publish.sh .paperclip/evals-hub --slug evals
For later refreshes, rebuild in the same output directory and publish with
--update. Keep its ignored .paperclip-page/state.json ownership record;
without that record, the helper will refuse to overwrite an existing prefix.
Verify the public page and its links after publication. This manual refresh
does not add a scheduled workflow. Preserve the measurement date when choosing
a newer rendering of the same campaign.
Remaining native chat boundaries are in the explicit-only
agent-chat-qualification suite: active task reassignment, user Retry after
verified worker process loss, and multi-turn answers grounded in actual task
records. See the workflow and qualification limits.
The 26 native first-task cells exercise onboarding before native selection
becomes the UI default. Live results and semantic answer reviews must accompany
any qualification claim; catalog presence alone is not a pass.
Lifecycle behavior baseline
The credential-free lifecycle baseline
joins unit, scripted-runner, and database integration assertions to a scenario
inventory before changing narrative-based lifecycle policy. Run
pnpm test:lifecycle-baseline to retain current passes and failures. Its Product
E2E matcher calibration is separate from live execution; unrun live coverage
remains explicitly unmeasured.
The separate live lifecycle baseline
defines 46 real-provider Product E2E cells, including paired narrative probes and
named existing controls on legacy and native Codex. Discover it with
pnpm test:e2e:runner -- --list --suite lifecycle-baseline. Historical execution
results and follow-up coverage are recorded in that suite's guide.
Continuation accounting has an explicit-only eight-cell Product E2E baseline suite, complementing the deterministic lifecycle inventory.
The explicit-only Product E2E api-response-reading suite verifies retrieval of
large saved API responses on local and Daytona native Codex runs. See the
Runner E2E guide.