T-FDZ3-agent-chat-markdown-answers

State: closed/done · Impact: medium · Complexity: small

Goal

Agent answers in the agent-chat experience are shown as pre-wrap text, so lists, fences and emphasis the model writes arrive as raw syntax. This task renders the answer turn through MdViewer; user turns and tool traces stay plain.

Today

Location	Role today
`solutions/determined/experiences/agent-chat/app/components/AgentChatMessage.vue`	Answer is `<p class="turn-agent__text">{{ row.text }}</p>` with `white-space: pre-wrap`
`solutions/determined/experiences/agent-chat/package.json`	Depends on `@determined/platform` only
`solutions/determined/experiences/agent-chat/nuxt.config.ts`	Empty layer config
`solutions/determined/products/agent-chat/nuxt.config.ts`	Extends shell, vaults and the agent-chat experience; moon id `product-agent-chat`

Proposed

The answer block is <MdViewer :source="row.text" :provider="chatProvider" /> where chatProvider.resolveLink returns { kind: 'missing' } for every target: agent output is untrusted and has no vault index behind it, so wikilinks render as unresolved text with no href. highlight, math and mermaid stay at the viewer defaults (off). The turn-agent__text rule is deleted. User turns, thinking steps and tool results are unchanged.

Approach

package.json: add @sksizer/markdown-ui (workspace:*); nuxt.config.ts: extends: ['@sksizer/markdown-ui'].
AgentChatMessage.vue: replace the answer <p> with MdViewer and a module-level provider whose resolveLink always answers missing; delete the turn-agent__text style.
Root bun install; bun install --frozen-lockfile.
Verify: moon run product-agent-chat:check; a conversation whose answer has a list, a fence and a wikilink in light and dark (screenshots); nuxi analyze on the product shows mermaid and KaTeX as lazy chunks only; moon run :check :test --affected.

Files to touch

Location	Kind	Change
`solutions/determined/experiences/agent-chat/package.json`	modify	Add `@sksizer/markdown-ui`
`solutions/determined/experiences/agent-chat/nuxt.config.ts`	modify	Extend the layer
`solutions/determined/experiences/agent-chat/app/components/AgentChatMessage.vue`	modify	Answer through `MdViewer`; delete the `pre-wrap` answer rule
`bun.lock`	modify	Root lockfile regen

Acceptance criteria

AC-1: AgentChatMessage.vue has no turn-agent__text element and mounts MdViewer for the answer.
AC-2: An answer containing Home renders the wikilink without an href attribute.
AC-3: moon run product-agent-chat:check passes.
AC-4: Light and dark screenshots of an answer with a list, a fence and a wikilink are attached to the PR.
AC-5: bun install --frozen-lockfile passes at the root.

Out of scope

Rendering user turns or tool-call results as markdown.
Resolving wikilinks against the vault the agent read; a later task can pass the notes provider.
Streaming re-render tuning; the viewer re-renders on each text change as today’s <p> did.

Dependencies

T-A0HT-md-ui-layer-skeleton supplies MdViewer.
Gate: the sanitize and routing fixes from T-8H57-obsidian-md-review-bug-triage land first; agent output is untrusted content.
D-7VMX-markdown-ecosystem-strategy d.10: the pre-wrap text render is removed.
S-0010-design-language-consumption.

Discovery context

Member of milestone M-931L; wave 3a of D-K3EM-markdown-editor-chrome-and-plugin-environment.

Depends on

T-A0HT-md-ui-layer-skeleton

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