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feat(desktop): surface Team Instructions as distinct observer section (#1759)

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Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
Co-authored-by: npub1mn7jgtj4w2pd0g0zeuhxsa6jy6p0rewxz4kujt98my82ahfmp72sxjexk7 <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@sprout-oss.stage.blox.sqprod.co>
This commit is contained in:
Will Pfleger
2026-07-11 17:19:30 -04:00
committed by GitHub
parent 84ec63aa24
commit 56d822dc2c
4 changed files with 278 additions and 27 deletions
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57
desktop/src/features/agents/ui/agentSessionTranscriptHelpers.ts
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@@ -57,15 +57,19 @@ export function parsePromptText(text: string): {
/**
* Split the framed `session/new` `systemPrompt` into its `Base`/`System`/
* `Core Memory`/`Channel Canvas` sub-sections deterministically.
* `Team Instructions`/`Core Memory`/`Channel Canvas` sub-sections
* deterministically.
*
* The harness composes the value in order:
* `[Base]\n{base}\n\n[System]\n{persona}\n\n[Agent Memory — core]\n{core}\n\n[Channel Canvas]\n{canvas}`
* with any section omitted when absent. Extraction runs in reverse producer
* order so that each `lastIndexOf` search operates on the full input and
* each extraction boundary is unambiguous.
* with any section omitted when absent. For team-pack agents the persona body
* already contains the pack-level instructions appended by `compose_prompt()`
* in `buzz-persona/src/resolve.rs`:
* `{persona_body}\n\n---\n# Team Instructions\n{pack_instructions}`
* Extraction runs in reverse producer order so that each `lastIndexOf` search
* operates on the full input and each extraction boundary is unambiguous.
*
* Three extraction passes before Base/System parsing:
* Four extraction passes before Base/System parsing:
*
* 1. **Canvas** (`[Channel Canvas]`): appended last by `with_canvas()`.
* - Start-of-string: canvas-only input.
@@ -79,6 +83,15 @@ export function parsePromptText(text: string): {
* 3. **Base/System**: remainder after canvas and core extraction.
* Split on the first `\n[System]\n` boundary; no embedded `[...]` line
* inside a body can start a new section.
*
* 4. **Team Instructions**: if the `System` body contains the exact canonical
* delimiter `\n\n---\n# Team Instructions\n` (produced by `compose_prompt()`),
* the body is split at the **last** occurrence of that boundary (same
* last-occurrence guard as canvas and core). The text before becomes the
* `System` body; the text after becomes a `Team Instructions` section
* inserted immediately after `System`. Non-canonical lookalikes (bare `---`
* without the heading, a `# Team Instructions` on a different line, or only
* a single preceding newline) are kept literal inside `System`.
*/
export function parseSystemPromptSections(
systemPrompt: string,
@@ -121,11 +134,36 @@ export function parseSystemPromptSections(
}
// ── 3. Parse Base/System from the remaining prefix ────────────────────────
// The canonical team-instructions delimiter produced by compose_prompt() in
// buzz-persona/src/resolve.rs:
// format!("{persona_prompt}\n\n---\n# Team Instructions\n{instructions}")
const TEAM_DELIMITER = "\n\n---\n# Team Instructions\n";
// splitSystemBody: split a raw [System] body string at the last occurrence
// of the canonical team delimiter, returning { systemBody, teamBody | null }.
// Using lastIndexOf mirrors the canvas/core last-occurrence guard: a persona
// author can embed an exact delimiter-like passage inside the persona body;
// only the final occurrence is the producer boundary appended by compose_prompt().
function splitSystemBody(raw: string): {
systemBody: string;
teamBody: string | null;
} {
const at = raw.lastIndexOf(TEAM_DELIMITER);
if (at === -1) return { systemBody: raw.trim(), teamBody: null };
return {
systemBody: raw.slice(0, at).trim(),
teamBody: raw.slice(at + TEAM_DELIMITER.length).trim() || null,
};
}
const baseAndSystem = remainder;
if (baseAndSystem) {
if (baseAndSystem.startsWith("[System]\n")) {
const body = baseAndSystem.slice("[System]\n".length).trim();
if (body) sections.push({ title: "System", body });
const raw = baseAndSystem.slice("[System]\n".length);
const { systemBody, teamBody } = splitSystemBody(raw);
if (systemBody) sections.push({ title: "System", body: systemBody });
if (teamBody)
sections.push({ title: "Team Instructions", body: teamBody });
} else {
const marker = "\n[System]\n";
const at = baseAndSystem.indexOf(marker);
@@ -134,8 +172,11 @@ export function parseSystemPromptSections(
if (baseBody) sections.push({ title: "Base", body: baseBody });
if (at !== -1) {
const systemBody = baseAndSystem.slice(at + marker.length).trim();
const raw = baseAndSystem.slice(at + marker.length);
const { systemBody, teamBody } = splitSystemBody(raw);
if (systemBody) sections.push({ title: "System", body: systemBody });
if (teamBody)
sections.push({ title: "Team Instructions", body: teamBody });
}
}
}