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feat: research workflows & rich search with user-selectable sources #437

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feat: research workflows & rich search with user-selectable sources #437

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35 changes: 33 additions & 2 deletions mcp-server/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -377,6 +377,16 @@ Use for breaking stories, current events, and time-sensitive reporting.`,
'What to do with the text (e.g. "summarise", "extract key points")',
default: "summarise",
},
format: {
type: "string",
enum: ["bullets", "narrative", "table", "comparison"],
description:
'Output format for the report. ' +
'"bullets" (default): concise bullet points with citations. ' +
'"narrative": flowing prose with inline citations. ' +
'"table": markdown table with source | claim | detail columns. ' +
'"comparison": side-by-side contrast of sources\' positions.',
},
},
required: ["text"],
},
Expand Down Expand Up @@ -986,7 +996,11 @@ server.setRequestHandler(CallToolRequestSchema, async (request) => {

// ── ai_summarize ──────────────────────────────────────────────────────
if (name === 'ai_summarize') {
const { text, instruction = 'summarise' } = args as { text: string; instruction?: string }
const { text, instruction = 'summarise', format } = args as {
text: string
instruction?: string
format?: 'bullets' | 'narrative' | 'table' | 'comparison'
}
const aiClient = getGroq()
if (!aiClient) {
return { content: [{ type: 'text', text: 'AI summarization is not configured.' }], isError: true }
Expand All @@ -1006,6 +1020,23 @@ server.setRequestHandler(CallToolRequestSchema, async (request) => {
return { content: [{ type: 'text', text: `Validation error: combined text + instruction length exceeds maximum of ${AI_COMBINED_MAX_LENGTH} characters (received ${text.length + instruction.length}).` }], isError: true }
}

// ── Format-specific instruction suffix ───────────────────────────────
// When a format is provided it overrides the instruction with a structured
// directive so the AI produces output in the requested report style.
const VALID_FORMATS = new Set(['bullets', 'narrative', 'table', 'comparison'])
const resolvedFormat = format && VALID_FORMATS.has(format) ? format : undefined

const FORMAT_DIRECTIVES: Record<string, string> = {
bullets: 'Write a concise bullet-point summary (3–7 bullets). Each bullet must cite its source(s) using [N] notation.',
narrative: 'Write a flowing prose summary (2–4 paragraphs) with inline [N] citations. Do not use bullet lists.',
table: 'Produce a Markdown table with columns: Source [N] | Key Claim | Detail. One row per source.',
comparison: 'Compare and contrast the sources\' positions: agreements first, then disagreements. Use inline [N] citations.',
}

const userContent = resolvedFormat
? `${FORMAT_DIRECTIVES[resolvedFormat]}\n\nText to analyse:\n\n${text}`
: `Please ${instruction} the following:\n\n${text}`

try {
const completion = await aiClient.chat.completions.create({
model: 'llama-3.3-70b-versatile',
Expand All @@ -1017,7 +1048,7 @@ server.setRequestHandler(CallToolRequestSchema, async (request) => {
},
{
role: "user",
content: `Please ${instruction} the following:\n\n${text}`,
content: userContent,
},
],
max_tokens: 512,
Expand Down
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