Verify documents, spreadsheets, presentations, and web deliverables before sharing them. Combine file checks with inspection of freshly rendered output, and scan for unfinished text to catch clipped content, layout problems, and leftover placeholders.
Verify an artifact before delivering it - file deliverables (pdf, pptx, docx, xlsx, csv) and web artifacts alike. Use whenever a build is about to return a link, or a build task asks for validation, QA, or a visual check. Covers the per-kind gate scripts, render-and-look verification, and leftover-placeholder scanning.
Review the instructions the agent will receive before you install.
One home for verification across the artifact namespace. The rule every kind shares: a deliverable is verified by looking at what the user will see, freshly rendered, not by trusting the code that produced it. Never return a link while a gate below fails; after three failed fix attempts, report the specific failure and ask for direction instead of iterating.
| Kind | Gate |
|---|---|
render_audit.mjs with the flags the pdf skill's workflow.md names, then /opt/hatch/skills/artifacts/scripts/validate_pdf.sh | |
| presentation | assemble_deck.mjs, then render_audit.mjs with the flags workflow.md names |
| docx | render to PDF with headless LibreOffice (soffice --headless --convert-to pdf), then rasterize (pdftoppm -jpeg -r 100) |
| xlsx | /opt/hatch/skills/artifacts/scripts/validate_xlsx.py |
| csv / md | parse it back (csv: a Python csv read; md: read the file) |
The shared render engine is /opt/hatch/skills/artifacts/scripts/render_audit.mjs;
renders outlast muse.exec's default yield, so size yield_ms past the expected
runtime and read the report file the flags name rather than trusting a
backgrounded command's silence.
Then look. Read every validation PNG or page image with fresh eyes - the generating context sees what it expects, not what rendered. Check first for text overflow or cut-off content, then overlaps, collisions, cramped or uneven spacing, low-contrast text, and template decoration left behind.
Placeholder scan. Before returning, search the deliverable's text for leftover scaffolding: TODO, lorem, placeholder, [insert, xxx runs, and sample rows the user never asked for. Anything found is fixed, not shipped.
Web builds keep their own audit tools (web_artifacts.build and
web_artifacts.audit run the same capture engine with enforcement); this
skill's render-fresh and placeholder rules apply to their output all the
same.
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Create a 3D object with three.js, inspect it from every angle in an interactive viewer, and download it as OBJ + MTL or GLB for use in other 3D applications.
Maintain a private task list with deadlines, next steps, waiting parties, and blockers. Update progress and dependencies, merge duplicate items, and archive closed tasks so ongoing commitments stay clear and easy to follow.
Coordinate a task from a verifiable goal through completion. Handle work directly or split independent tasks across separate agent sessions, track progress, verify results, and arrange pull request merging when included in the goal.
Create animated HTML pages with smooth scene transitions and playback controls. An editable timeline lets users adjust scene lengths and speeds, with fixed landscape or portrait layouts prepared for video export.
Review synced Apple Health records, including steps, heart rate, sleep, and workouts. Retrieve daily summaries or detailed samples for a chosen period, and check sync status and missing data before interpreting the results.
Create and edit Word documents and templates, reorganize text, replace images, and work with tracked changes or comments. Apply proper headings and lists, then render every page to check its appearance before delivery.