Agent Artifact Upload Workflow

Generated files that a board user or reviewer should inspect must be attached to the Paperclip issue before the agent chooses a final disposition. A local workspace path is not enough, because cloud users and reviewers often cannot access the agent's disk.

Use the helper bundled with the Paperclip skill from the repo root:

skills/paperclip/scripts/paperclip-upload-artifact.sh path/to/output.webm \
  --title "Walkthrough render" \
  --summary "Rendered walkthrough for review"

The helper uses the authenticated Paperclip API from the current heartbeat environment:

PAPERCLIP_API_URL
PAPERCLIP_API_KEY
PAPERCLIP_COMPANY_ID
PAPERCLIP_TASK_ID
PAPERCLIP_RUN_ID

It uploads the file to POST /api/companies/{companyId}/issues/{issueId}/attachments and creates an artifact work product on POST /api/issues/{issueId}/work-products by default. The command prints issue-safe markdown links for the final task comment.

Completion Pattern

When a task produces a user-inspectable file:

Generate and verify the file locally.
Upload it with skills/paperclip/scripts/paperclip-upload-artifact.sh.
Keep the artifact work product unless the file is incidental; pass --no-work-product only for supporting files that should not be promoted.
Link the printed attachment URL in the final issue comment.
Then set the final issue status.

Final comments should name the uploaded artifact, not just the local filesystem path. Local paths can be included as diagnostic context, but they cannot be the only access path.

Video Examples

Upload an .mp4 render:

skills/paperclip/scripts/paperclip-upload-artifact.sh dist/demo.mp4 \
  --title "Demo video render" \
  --summary "MP4 render for board review"

Upload a .webm render:

skills/paperclip/scripts/paperclip-upload-artifact.sh out/walkthrough.webm \
  --title "Walkthrough video" \
  --summary "WebM walkthrough render"

The helper detects .mp4, .webm, and .mov content types. If a renderer uses an unusual extension, pass the MIME type explicitly:

skills/paperclip/scripts/paperclip-upload-artifact.sh render.bin \
  --title "Demo video render" \
  --content-type video/mp4

Direct API Pattern

If the helper is unavailable, use the same API shape:

curl -sS -X POST \
  "$PAPERCLIP_API_URL/api/companies/$PAPERCLIP_COMPANY_ID/issues/$PAPERCLIP_TASK_ID/attachments" \
  -H "Authorization: Bearer $PAPERCLIP_API_KEY" \
  -H "X-Paperclip-Run-Id: $PAPERCLIP_RUN_ID" \
  -F 'file=@"dist/demo.mp4";type=video/mp4'

Then create a work product when the uploaded file is the deliverable:

curl -sS -X POST \
  "$PAPERCLIP_API_URL/api/issues/$PAPERCLIP_TASK_ID/work-products" \
  -H "Authorization: Bearer $PAPERCLIP_API_KEY" \
  -H "X-Paperclip-Run-Id: $PAPERCLIP_RUN_ID" \
  -H "Content-Type: application/json" \
  --data-binary @artifact-work-product.json

Use type: "artifact", provider: "paperclip", and metadata containing the uploaded attachmentId. The server canonicalizes contentType, byteSize, contentPath, openPath, downloadPath, and originalFilename.