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Agent Artifact Upload Workflow

Generated files that a board user or reviewer should inspect as deliverables 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.

Uploaded Artifacts vs Workspace Files

Use uploaded artifacts for deliverables: videos, PDFs, screenshots, archives, reports, rendered HTML, or any file the board should inspect without needing the agent's checkout. Attachment-backed artifact work products set type to artifact and provider to paperclip, with metadata canonicalized from the uploaded attachmentId.

Use workspace_file metadata only for important files that intentionally remain in a project or execution workspace, such as source files, committed markdown plans, or generated files whose meaning depends on the checkout. Workspace-only references are useful signposts, but they are not durable uploads.

Expected work product metadata shape:

{
  "resourceRef": {
    "kind": "workspace_file",
    "issueId": "<issue-id>",
    "workspaceKind": "execution_workspace",
    "workspaceId": "<execution-workspace-id>",
    "relativePath": "doc/plans/example.md",
    "line": 1,
    "column": 1,
    "displayPath": "doc/plans/example.md:1:1"
  }
}

workspaceKind is execution_workspace or project_workspace. line and column are optional. relativePath must be relative to that workspace root; do not store host-local absolute paths as workspace references.

Workspace file links resolve only inside registered Paperclip workspaces. The default target is the current issue's execution workspace first, then its project workspace. A link may target another same-company project workspace only when it carries both that projectId and workspaceId. Paperclip does not resolve arbitrary machine-wide filesystem paths, absolute host paths, home paths, or relative paths that escape the selected workspace.

Completion Pattern

When a task produces a user-inspectable deliverable 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.

For a response that is explicitly intended for an external chat conversation, also pass each intended file with paperclipai issue comment --attachment-id <id>. Paperclip binds only those exact uploaded files to that comment; other task attachments remain internal.

Final comments should name and link the uploaded artifact or work product, not just the local filesystem path. For workspace-only files, include the work product title and recorded relative path. Local paths can be included as diagnostic context, but they cannot be the only access path. Browse/search is a fallback for recovering workspace files when the issue link or chip is not available, not the preferred way to deliver files to users.

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.

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