Markdown pipe-tables and hand-written html_fragment <table> markup already
rendered - the only existing rule was 'max-width: 100%', so they came out
as bare, unbordered browser-default tables. Adds borders, header
background, cell padding, and zebra striping, plus a display:block +
overflow-x:auto pattern so wide tables scroll horizontally instead of
squeezing columns or breaking page layout.
Lives in base.css, which report.css and tasks.css both @import, so it
applies to every existing and future markdown/html_fragment artifact
immediately - no agent-side change needed, since this is rendered live
from CSS rather than baked into stored HTML.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Gap 1 from planning/2026-09-02-artifact_kind_gaps_for_frequent_agent_output.md.
Chose new first-class kinds over riding on html_fragment, resolving that
doc's open design question in favor of filtering support, raw-source
preservation (like markdown's .md sidecar), and server-owned validation.
- json: validated with json.loads at post time (400 on invalid JSON),
rendered with renderjson (collapsible tree), vendored locally.
- csv: parsed server-side with the stdlib csv module into columns/rows and
handed to Grid.js as plain data - no client-side CSV-parsing plugin
needed, keeping normalization server-owned. Vendored locally (MIT).
- Both preserve their original text as a sidecar file, generalizing what
was previously markdown-only handling (storage.py's SIDECAR_SUFFIXES) so
disk-size accounting, eviction cleanup, and ?raw=1 all cover json/csv too.
- Raw JSON is embedded in a <script type="application/json"> block with
`</script` occurrences escaped (safe because JSON's \/ escape round-trips
correctly) - verified with a live </script>-injection payload against the
actual running server, not just unit tests.
New migration (0012) for the KIND_CHOICES change - SQLite doesn't enforce
choices at the schema level, but Django's migration state tracks it.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Enables codehilite on the markdown renderer (Pygments, 'friendly' style,
vendored as static/themes/pygments.css) so fenced code blocks get real
syntax highlighting with zero client-side JS - matching the "themes are
CSS-only" stance in framework_artifact_rendering.md. Verified live against
the running dev instance: a fenced python block renders with highlighted
keyword/string/function spans.
This was Gap 2 from planning/2026-09-02-artifact_kind_gaps_for_frequent_agent_output.md,
picked as the first fix since it needed no new kind or design decision -
just enabling an existing markdown extension.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Daybook: a self-hosted, multi-user Django + DRF app where agents, scripts,
or people publish artifacts and each logged-in user browses their own
time-ordered, label-filterable feed.
This squashes prior local development history (kept privately on a separate
branch) into a single clean starting point for the public repository.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
