OpenAgents

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docs/ICONS.md

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Icon policy

Date: 2026-08-20

Status: Current

OpenAgents uses one component entry point and two governed glyph tiers. Render every glyph with OpenAgentsWeb.UI.icon/1. Never paste an SVG into a template, call an icon library module, add an icon font, or introduce a third source.

Tier 1: Apps SDK UI

Use the vendored Apps SDK UI set in priv/icons first. These files are pinned, same-origin, and covered by priv/icons/LICENSE. OpenAgentsWeb.Icons embeds them and fails on unknown names.

To add or upgrade a glyph:

  1. Check out openai/apps-sdk-ui at the reviewed commit.
  2. Run mix openagents.icons.vendor <path-to-apps-sdk-ui>.
  3. Update the commit, date, and count in priv/icons/README.md.
  4. Run mix precommit.

Tier 2: Heroicons

Use a hero-* name only when the Apps SDK set has no suitable glyph. Heroicons is pinned to revision 0435d4ca364a608cc75e2f8683d374e55abbae26 and enters the CSS bundle through assets/vendor/heroicons.js. The same icon/1 component renders the fallback, so accessibility and sizing stay governed.

Before you add a fallback use:

  1. Record the call site, glyph, and missing Apps SDK concept in the inventory below.
  2. Confirm that no existing Apps SDK glyph communicates the action.
  3. Add a test for the control's accessible name or adjacent visible label.
  4. Run mix precommit.

Fallback inventory

No product surface currently uses a Heroicons fallback. The dependency remains available as the documented second tier, and the CSS contract test prevents it from becoming a separate component system.

Brand marks

Brand marks live in priv/brand, outside both generic tiers. Use one only to identify the service reached by an action. Render it through icon/1 with a brand-* name, and follow the attribution and trademark rules in priv/brand/README.md.

Octicons

Issue-state glyphs live in priv/octicons, vendored verbatim from Primer Octicons (MIT) at the commit recorded in priv/octicons/README.md. They render through icon/1 under octicon-* names.

OpenAgents is a GitHub-compatible forge, so issue state is domain vocabulary: open takes octicon-issue-opened and a completed close takes octicon-issue-closed. Neither governed tier carries those concepts — the Apps SDK set has no issue glyph, and Heroicons has no circle-dot. State color comes from palette tokens at the call site (--success for open, --done for closed), never from the file.

Adding or upgrading an octicon follows the same rule as every other tier: copy the upstream file at the pinned commit, update the README's commit, date, and count, and run mix precommit.

Accessibility

A glyph beside visible words is decorative and needs no label. Put aria-label on an icon-only control. Pass label to icon/1 only when the glyph itself is the complete, noninteractive message.