made tiny updates

This commit is contained in:
SinachPat
2026-05-04 12:30:56 +01:00
parent 3f029e15c2
commit 5b2d918c13
47 changed files with 2597 additions and 521 deletions
+4 -3
View File
@@ -2,9 +2,10 @@ import Anthropic from '@anthropic-ai/sdk';
// ── Model constants ───────────────────────────────────────────────────────────
// claude-opus-4-7 uses adaptive thinking (thinking.type = 'adaptive').
// It does NOT accept temperature, top_p, or top_k — those are omitted in gateway.ts.
export const MODEL = 'claude-opus-4-7' as const;
// Spec Layer 6: "Claude Sonnet 4 API is the only AI provider."
// claude-sonnet-4-6 supports per-call temperature (0.1 / 0.2 / 0.3 per prompt)
// which the spec requires for diff-summary, completion-zone, and agent-query.
export const MODEL = 'claude-sonnet-4-6' as const;
// ── Singleton client ──────────────────────────────────────────────────────────
// The client is created once and shared. API key is injected from the server
+10 -12
View File
@@ -1,5 +1,5 @@
import type { AIGateway } from '../gateway.js';
import { buildSystemPrompt } from '../prompts/system.js';
import { buildAgentQueryMessages } from '../prompts/agent-query.prompt.js';
export interface AgentQAInput {
/** Question from the coding agent (e.g. Cursor or Claude Code) */
@@ -10,6 +10,10 @@ export interface AgentQAInput {
artboardContextJson: string;
/** Active DLF */
dlfJson?: string;
/** Before-state screenshot as base64 data URL (spec Layer 6.3-R3) */
beforeScreenshotBase64?: string;
/** After-state screenshot as base64 data URL (spec Layer 6.3-R3) */
afterScreenshotBase64?: string;
}
export interface AgentQAOutput {
@@ -22,20 +26,14 @@ export async function answerAgentQuestion(
gateway: AIGateway,
input: AgentQAInput
): Promise<AgentQAOutput> {
const system = buildSystemPrompt({
role: 'a design agent answering questions from a coding agent implementing a design diff',
...(input.dlfJson !== undefined ? { dlfJson: input.dlfJson } : {}),
});
const { system, userContent, maxTokens } = buildAgentQueryMessages(input);
const response = await gateway.complete({
system,
messages: [
{
role: 'user',
content: `<artboard_context>\n${input.artboardContextJson}\n</artboard_context>\n\n<diff_id>${input.diffId}</diff_id>\n\n<question>\n${input.question}\n</question>\n\nAnswer the coding agent's question concisely and precisely. If the answer references a specific design token, component, or visual region, include a "visualReference" field. Return JSON:\n{\n "answer": "...",\n "visualReference": "..." (optional)\n}\n\nRespond ONLY with valid JSON.`,
},
],
maxTokens: 1024,
// userContent is ContentBlockParam[] — may include image blocks for screenshots
messages: [{ role: 'user', content: userContent }],
maxTokens,
temperature: 0.1, // spec Layer 6.3: 0.1 for agent-query (factual, authoritative)
});
let parsed: unknown;
@@ -1,5 +1,5 @@
import type { AIGateway } from '../gateway.js';
import { buildSystemPrompt } from '../prompts/system.js';
import { buildArtboardQueryMessages } from '../prompts/artboard-query.prompt.js';
export interface ArtboardQueryInput {
/** Natural language query from the user */
@@ -23,17 +23,13 @@ export async function queryCrossArtboard(
gateway: AIGateway,
input: ArtboardQueryInput
): Promise<ArtboardQueryOutput> {
const system = buildSystemPrompt({ role: 'a search agent filtering artboards by design intent' });
const { system, userContent, maxTokens } = buildArtboardQueryMessages(input);
const response = await gateway.complete({
system,
messages: [
{
role: 'user',
content: `<artboards>\n${input.artboardsJson}\n</artboards>\n\n<query>\n${input.query}\n</query>\n\nReturn a JSON object:\n{\n "results": [{"artboardId": "...", "relevanceScore": 0-1, "reason": "..."}],\n "reasoning": "brief explanation"\n}\n\nOnly include artboards with relevanceScore > 0.3. Respond ONLY with valid JSON.`,
},
],
maxTokens: 1024,
messages: [{ role: 'user', content: userContent }],
maxTokens,
temperature: 0.1, // spec Layer 10.2: 0.1 for workspace queries (factual)
});
// Returning empty results on parse failure is indistinguishable from "no match".
@@ -1,8 +1,17 @@
import type Anthropic from '@anthropic-ai/sdk';
import { z } from 'zod';
import { AIGateway } from '../gateway.js';
import { buildSystemPrompt } from '../prompts/system.js';
import { buildCompletionZoneMessages } from '../prompts/completion-zone.prompt.js';
import type { GatewayResponse } from '../gateway.js';
// ── Output schema (spec Layer 6.3-R2: validated with Zod before accepting) ────
// The model MUST return exactly these two fields. We validate the shape before
// returning to callers so a malformed AI response never reaches the canvas store.
const CompletionZoneResultSchema = z.object({
proposedTree: z.unknown(), // arbitrary component tree — shape validated downstream
description: z.string().min(1), // non-empty natural-language summary
});
// ── Types ─────────────────────────────────────────────────────────────────────
export interface CompletionZoneInput {
@@ -14,10 +23,12 @@ export interface CompletionZoneInput {
dlfJson?: string;
/** Before screenshot as base64 data URL (optional) */
screenshotBase64?: string;
/** Workspace ID for per-workspace cost attribution (spec Layer 6) */
workspaceId?: string;
}
export interface CompletionZoneOutput {
/** Proposed component tree changes as structured JSON */
/** Proposed component tree changes as structured JSON — Zod-validated shape */
proposedTree: unknown;
/** Natural language description of the proposed change */
description: string;
@@ -31,45 +42,50 @@ export async function fillCompletionZone(
input: CompletionZoneInput,
maxRetries = 3
): Promise<CompletionZoneOutput> {
const system = buildSystemPrompt({
role: 'a Completion Zone design agent',
...(input.dlfJson !== undefined ? { dlfJson: input.dlfJson } : {}),
});
const { system, userContent, maxTokens } = buildCompletionZoneMessages(input);
const userContent: Anthropic.Messages.ContentBlockParam[] = [
{
type: 'text',
text: `<component_tree>\n${input.componentTreeJson}\n</component_tree>\n\n<intent>\n${input.intent}\n</intent>\n\nReturn a JSON object with two fields:\n- "proposedTree": the updated component tree matching the intent\n- "description": a one-sentence description of the change\n\nRespond ONLY with valid JSON.`,
},
];
if (input.screenshotBase64) {
userContent.unshift({
type: 'image',
source: { type: 'base64', media_type: 'image/png', data: input.screenshotBase64.replace(/^data:image\/\w+;base64,/, '') },
} as Anthropic.Messages.ImageBlockParam);
}
// Retry up to maxRetries times on invalid JSON output
// Retry up to maxRetries times on invalid JSON or Zod-invalid output
let lastError: Error | null = null;
for (let attempt = 0; attempt < maxRetries; attempt++) {
const response = await gateway.complete({
system,
messages: [{ role: 'user', content: userContent }],
maxTokens: 4096,
messages: [{ role: 'user', content: userContent }],
maxTokens,
temperature: 0.3, // spec Layer 6.3: 0.3 for completion-zone (creative latitude)
...(input.workspaceId !== undefined ? { workspaceId: input.workspaceId } : {}),
});
// Strip markdown fences the model occasionally adds despite instructions
const raw = response.text.replace(/^```(?:json)?\s*/i, '').replace(/\s*```\s*$/, '').trim();
let parsed: unknown;
try {
const parsed = JSON.parse(response.text.replace(/^```(?:json)?\s*/i, "").replace(/\s*```\s*$/, "").trim());
return { proposedTree: parsed.proposedTree as unknown, description: String(parsed.description ?? ''), raw: response };
parsed = JSON.parse(raw);
} catch (parseErr) {
lastError = new Error(
`AI returned invalid JSON on attempt ${attempt + 1}: ${String(parseErr)}. ` +
`Raw response (first 200 chars): ${response.text.slice(0, 200)}`
);
continue;
}
// Validate shape with Zod before accepting (spec Layer 6.3-R2)
const validated = CompletionZoneResultSchema.safeParse(parsed);
if (!validated.success) {
lastError = new Error(
`AI response failed schema validation on attempt ${attempt + 1}: ` +
validated.error.errors.map(e => `${e.path.join('.')}: ${e.message}`).join(', ') +
`. Raw response (first 200 chars): ${response.text.slice(0, 200)}`
);
continue;
}
return {
proposedTree: validated.data.proposedTree,
description: validated.data.description,
raw: response,
};
}
throw lastError ?? new Error('Completion zone fill failed after retries');
}
+48 -9
View File
@@ -1,11 +1,13 @@
import type { AIGateway } from '../gateway.js';
import { buildSystemPrompt } from '../prompts/system.js';
import { buildDiffSummaryMessages, buildAggregateSummaryMessages } from '../prompts/diff-summary.prompt.js';
export interface DiffSummaryInput {
/** Serialized component-level changes (JSON) */
changesJson: string;
/** Component name */
componentName: string;
/** Active DLF as JSON string — passed through for rule-violation annotation */
dlfJson?: string;
}
export interface DiffSummaryOutput {
@@ -16,17 +18,54 @@ export async function generateDiffSummary(
gateway: AIGateway,
input: DiffSummaryInput
): Promise<DiffSummaryOutput> {
const system = buildSystemPrompt({ role: 'a technical writer summarizing UI component changes' });
const { system, userContent, maxTokens } = buildDiffSummaryMessages(input);
const response = await gateway.complete({
system,
messages: [
{
role: 'user',
content: `Summarize the following component changes for "${input.componentName}" in one concise sentence (max 20 words) suitable for a developer reviewing a pull request. Focus on what changed and its purpose.\n\n<changes>\n${input.changesJson}\n</changes>\n\nRespond with only the summary sentence.`,
},
],
maxTokens: 128,
messages: [{ role: 'user', content: userContent }],
maxTokens,
temperature: 0.2, // spec Layer 6.3: 0.2 for diff-summary (consistent output)
});
return { summary: response.text.trim() };
}
// ── Aggregate summary ─────────────────────────────────────────────────────────
export interface AggregateSummaryInput {
/** All changes in the diff as serialized JSON */
changesJson: string;
/** Human-readable artboard name, e.g. "Homepage Hero" */
artboardName: string;
/** Active DLF as JSON string — used to flag rule violations in the summary */
dlfJson?: string;
}
export interface AggregateSummaryOutput {
summary: string;
}
/**
* Generates a 2-3 sentence summary of ALL changes across a single diff
* (artboard-level granularity, suitable for the diff card header and PR body).
* Uses buildAggregateSummaryMessages — the session-level counterpart of
* buildDiffSummaryMessages (component-level).
*/
export async function generateAggregateSummary(
gateway: AIGateway,
input: AggregateSummaryInput,
): Promise<AggregateSummaryOutput> {
const { system, userContent, maxTokens } = buildAggregateSummaryMessages({
changesJson: input.changesJson,
artboardName: input.artboardName,
...(input.dlfJson !== undefined ? { dlfJson: input.dlfJson } : {}),
});
const response = await gateway.complete({
system,
messages: [{ role: 'user', content: userContent }],
maxTokens,
temperature: 0.2, // same as per-component summary — deterministic aggregate
});
return { summary: response.text.trim() };
+103 -21
View File
@@ -1,5 +1,13 @@
import Anthropic from '@anthropic-ai/sdk';
import { getClient, MODEL } from './client.js';
import { generateDiffSummary, generateAggregateSummary } from './features/diff-summary.js';
import { fillCompletionZone } from './features/completion-zone.js';
import { queryCrossArtboard } from './features/artboard-query.js';
import { answerAgentQuestion } from './features/agent-qa.js';
import type { DiffSummaryInput, DiffSummaryOutput, AggregateSummaryInput, AggregateSummaryOutput } from './features/diff-summary.js';
import type { CompletionZoneInput, CompletionZoneOutput } from './features/completion-zone.js';
import type { ArtboardQueryInput, ArtboardQueryOutput } from './features/artboard-query.js';
import type { AgentQAInput, AgentQAOutput } from './features/agent-qa.js';
// ── Gateway config ────────────────────────────────────────────────────────────
@@ -21,21 +29,22 @@ export interface RequestCost {
estimatedCentsCost: number;
}
const OPUS_4_INPUT_COST_PER_M = 500; // $5.00 / 1M
const OPUS_4_OUTPUT_COST_PER_M = 2500; // $25.00 / 1M
const OPUS_4_CACHE_READ_PER_M = 50; // $0.50 / 1M (estimated)
// Spec Layer 6: claude-sonnet-4-6 pricing (used for cost attribution logging)
const SONNET_4_INPUT_COST_PER_M = 300; // $3.00 / 1M input tokens
const SONNET_4_OUTPUT_COST_PER_M = 1500; // $15.00 / 1M output tokens
const SONNET_4_CACHE_READ_PER_M = 30; // $0.30 / 1M cache-read tokens
function computeCost(usage: { input_tokens: number; output_tokens: number; cache_read_input_tokens?: number | null; cache_creation_input_tokens?: number | null }): RequestCost {
const inputTokens = usage.input_tokens;
const outputTokens = usage.output_tokens;
const cacheReadTokens = usage.cache_read_input_tokens ?? 0;
const inputTokens = usage.input_tokens;
const outputTokens = usage.output_tokens;
const cacheReadTokens = usage.cache_read_input_tokens ?? 0;
const cacheWriteTokens = usage.cache_creation_input_tokens ?? 0;
const billableInput = inputTokens - cacheReadTokens;
const estimatedCentsCost = Math.round(
(billableInput / 1_000_000) * OPUS_4_INPUT_COST_PER_M +
(outputTokens / 1_000_000) * OPUS_4_OUTPUT_COST_PER_M +
(cacheReadTokens / 1_000_000) * OPUS_4_CACHE_READ_PER_M
(billableInput / 1_000_000) * SONNET_4_INPUT_COST_PER_M +
(outputTokens / 1_000_000) * SONNET_4_OUTPUT_COST_PER_M +
(cacheReadTokens / 1_000_000) * SONNET_4_CACHE_READ_PER_M
);
return { inputTokens, outputTokens, cacheReadTokens, cacheWriteTokens, estimatedCentsCost };
@@ -70,11 +79,22 @@ function sleep(ms: number): Promise<void> {
// ── Gateway ───────────────────────────────────────────────────────────────────
export interface GatewayRequest {
messages: Anthropic.Messages.MessageParam[];
system?: Anthropic.Messages.TextBlockParam[];
maxTokens?: number;
// NOTE: temperature is intentionally omitted — claude-opus-4-7 with
// adaptive thinking rejects temperature, top_p, and top_k with a 400 error.
messages: Anthropic.Messages.MessageParam[];
system?: Anthropic.Messages.TextBlockParam[];
maxTokens?: number;
/**
* Sampling temperature — spec Layer 6.3 per-prompt values:
* diff-summary: 0.2 (consistent, low-creativity summaries)
* completion-zone: 0.3 (slight creative latitude for UI generation)
* agent-query: 0.1 (factual/authoritative answers)
* Defaults to 0.2 if omitted. Range [0, 1].
*/
temperature?: number;
/**
* Workspace ID for per-workspace cost attribution (spec Layer 6.2-R2).
* Logged on every request so cost can be aggregated per workspace.
*/
workspaceId?: string;
}
export interface GatewayResponse {
@@ -98,15 +118,18 @@ export class AIGateway {
async complete(req: GatewayRequest): Promise<GatewayResponse> {
await this.rateLimiter.acquire();
const requestId = `req_${Date.now().toString(36)}_${Math.random().toString(36).slice(2, 7)}`;
const startMs = Date.now();
let lastError: Error | null = null;
for (let attempt = 0; attempt < this.maxRetries; attempt++) {
try {
const response = await this.client.messages.create({
model: MODEL,
max_tokens: req.maxTokens ?? 4096,
thinking: { type: 'adaptive' },
model: MODEL,
max_tokens: req.maxTokens ?? 4096,
temperature: req.temperature ?? 0.2,
...(req.system !== undefined ? { system: req.system } : {}),
messages: req.messages,
messages: req.messages,
});
const text = response.content
@@ -114,20 +137,55 @@ export class AIGateway {
.map(b => b.text)
.join('');
const cost = computeCost(response.usage);
const cost = computeCost(response.usage);
const latencyMs = Date.now() - startMs;
this.totalCost += cost.estimatedCentsCost;
// ── Structured request log (spec Layer 6.2-R4) ──────────────────────
// Every AI call is logged with: requestId, model, token counts, cost
// estimate, latency, and workspace ID for per-workspace attribution.
console.log(JSON.stringify({
level: 'info',
event: 'ai_request',
requestId,
model: MODEL,
workspaceId: req.workspaceId ?? null,
inputTokens: cost.inputTokens,
outputTokens: cost.outputTokens,
cacheReadTokens: cost.cacheReadTokens,
cacheWriteTokens: cost.cacheWriteTokens,
estimatedCents: cost.estimatedCentsCost,
latencyMs,
attempt,
}));
return { content: response.content, text, cost };
} catch (err) {
lastError = err instanceof Error ? err : new Error(String(err));
const latencyMs = Date.now() - startMs;
// Log every failed attempt for observability
console.error(JSON.stringify({
level: 'error',
event: 'ai_request_error',
requestId,
model: MODEL,
workspaceId: req.workspaceId ?? null,
attempt,
latencyMs,
error: lastError.message,
}));
// Retry on 429, 529, 5xx, and network errors (no HTTP status).
// Break immediately on client errors (4xx that aren't rate-limits).
if (err instanceof Anthropic.APIError) {
const { status } = err;
if (status !== 429 && status !== 529 && status < 500) break;
}
// Non-APIError (network timeout, DNS failure, etc.) → always retry
await sleep(2 ** attempt * 1000);
// Non-APIError (network timeout, DNS failure, etc.) → always retry.
// Cap at 30s so a long retry sequence doesn't wedge the server forever.
const delayMs = Math.min(2 ** attempt * 1000, 30_000);
await sleep(delayMs);
}
}
@@ -138,4 +196,28 @@ export class AIGateway {
getCumulativeCost(): number {
return this.totalCost;
}
// ── Spec Layer 5 convenience methods ─────────────────────────────────────────
// Thin wrappers that delegate to the standalone feature functions, making the
// gateway usable as a single dependency injection point across the app layer.
generateDiffSummary(input: DiffSummaryInput): Promise<DiffSummaryOutput> {
return generateDiffSummary(this, input);
}
generateAggregateSummary(input: AggregateSummaryInput): Promise<AggregateSummaryOutput> {
return generateAggregateSummary(this, input);
}
fillCompletionZone(input: CompletionZoneInput): Promise<CompletionZoneOutput> {
return fillCompletionZone(this, input);
}
queryArtboards(input: ArtboardQueryInput): Promise<ArtboardQueryOutput> {
return queryCrossArtboard(this, input);
}
answerAgentQuery(input: AgentQAInput): Promise<AgentQAOutput> {
return answerAgentQuestion(this, input);
}
}
+15 -2
View File
@@ -2,11 +2,24 @@ export { getClient, MODEL } from './client.js';
export { AIGateway } from './gateway.js';
export type { GatewayRequest, GatewayResponse, RequestCost } from './gateway.js';
// ── Versioned prompt builders ─────────────────────────────────────────────────
export { DIFF_SUMMARY_PROMPT_VERSION, buildDiffSummaryMessages, buildAggregateSummaryMessages } from './prompts/diff-summary.prompt.js';
export type { DiffSummaryPromptInput, AggregateSummaryPromptInput } from './prompts/diff-summary.prompt.js';
export { COMPLETION_ZONE_PROMPT_VERSION, buildCompletionZoneMessages } from './prompts/completion-zone.prompt.js';
export type { CompletionZonePromptInput } from './prompts/completion-zone.prompt.js';
export { ARTBOARD_QUERY_PROMPT_VERSION, buildArtboardQueryMessages } from './prompts/artboard-query.prompt.js';
export type { ArtboardQueryPromptInput } from './prompts/artboard-query.prompt.js';
export { AGENT_QUERY_PROMPT_VERSION, buildAgentQueryMessages } from './prompts/agent-query.prompt.js';
export type { AgentQueryPromptInput } from './prompts/agent-query.prompt.js';
export { fillCompletionZone } from './features/completion-zone.js';
export type { CompletionZoneInput, CompletionZoneOutput } from './features/completion-zone.js';
export { generateDiffSummary } from './features/diff-summary.js';
export type { DiffSummaryInput, DiffSummaryOutput } from './features/diff-summary.js';
export { generateDiffSummary, generateAggregateSummary } from './features/diff-summary.js';
export type { DiffSummaryInput, DiffSummaryOutput, AggregateSummaryInput, AggregateSummaryOutput } from './features/diff-summary.js';
export { queryCrossArtboard } from './features/artboard-query.js';
export type { ArtboardQueryInput, ArtboardQueryOutput, ArtboardQueryResult } from './features/artboard-query.js';
@@ -0,0 +1,99 @@
// ── Agent Query Prompt ────────────────────────────────────────────────────────
// Versioned prompt for answering coding-agent questions about design diffs.
//
// Version: 1.0
// Model: claude-sonnet-4-6 (spec Layer 6: "Claude Sonnet 4 API is the only AI provider")
// Tokens: max 1024 — JSON with answer + optional visual reference
//
// Structure:
// System: stable role (cached) + optional DLF constraint block (cached)
// User: [before screenshot] + [after screenshot] + artboard context +
// diff ID + agent question (spec Layer 6.3-R3: screenshots required)
import type Anthropic from '@anthropic-ai/sdk';
import { buildSystemPrompt } from './system.js';
export const AGENT_QUERY_PROMPT_VERSION = '1.0';
export interface AgentQueryPromptInput {
/** Question from the coding agent (e.g. Cursor or Claude Code) */
question: string;
/** The diff ID this question is about */
diffId: string;
/** Full artboard context (IntentDiff + artboard metadata) as JSON */
artboardContextJson: string;
/** Active DLF as JSON string (optional — cached in system when present) */
dlfJson?: string;
/**
* Before-state screenshot as base64 data URL (spec Layer 6.3-R3).
* Gives the model visual ground truth of what the artboard looked like
* before the diff was applied.
*/
beforeScreenshotBase64?: string;
/**
* After-state screenshot as base64 data URL (spec Layer 6.3-R3).
* Gives the model the proposed post-diff visual state.
*/
afterScreenshotBase64?: string;
}
function stripDataUrl(dataUrl: string): string {
return dataUrl.replace(/^data:image\/\w+;base64,/, '');
}
/**
* Builds the system + user content blocks for a coding-agent design question.
* When screenshots are provided they precede the text context so the model can
* visually ground its answer before reading the structured JSON.
* Max 1024 tokens — the answer must be precise and actionable.
*/
export function buildAgentQueryMessages(input: AgentQueryPromptInput): {
system: Anthropic.Messages.TextBlockParam[];
userContent: Anthropic.Messages.ContentBlockParam[];
maxTokens: number;
} {
const system = buildSystemPrompt({
role: 'a design agent answering questions from a coding agent implementing a design diff',
...(input.dlfJson !== undefined ? { dlfJson: input.dlfJson } : {}),
});
const userContent: Anthropic.Messages.ContentBlockParam[] = [];
// Screenshots first — visual context before text, per multimodal best practice.
if (input.beforeScreenshotBase64) {
userContent.push({
type: 'text',
text: 'Before state (artboard before this diff was applied):',
});
userContent.push({
type: 'image',
source: { type: 'base64', media_type: 'image/png', data: stripDataUrl(input.beforeScreenshotBase64) },
} as Anthropic.Messages.ImageBlockParam);
}
if (input.afterScreenshotBase64) {
userContent.push({
type: 'text',
text: 'After state (proposed artboard after this diff is applied):',
});
userContent.push({
type: 'image',
source: { type: 'base64', media_type: 'image/png', data: stripDataUrl(input.afterScreenshotBase64) },
} as Anthropic.Messages.ImageBlockParam);
}
userContent.push({
type: 'text',
text:
`<artboard_context>\n${input.artboardContextJson}\n</artboard_context>\n\n` +
`<diff_id>${input.diffId}</diff_id>\n\n` +
`<question>\n${input.question}\n</question>\n\n` +
`Answer the coding agent's question concisely and precisely. ` +
`If the answer references a specific design token, component, or visual region, ` +
`include a "visualReference" field. Return JSON:\n` +
`{\n "answer": "...",\n "visualReference": "..." (optional)\n}\n\n` +
`Respond ONLY with valid JSON.`,
});
return { system, userContent, maxTokens: 1024 };
}
@@ -0,0 +1,46 @@
// ── Artboard Query Prompt ─────────────────────────────────────────────────────
// Versioned prompt for cross-artboard design intent search.
//
// Version: 1.0
// Model: claude-sonnet-4-6 (spec Layer 6: "Claude Sonnet 4 API is the only AI provider")
// Tokens: max 1024 — output is a JSON results array ranked by relevance
//
// Structure:
// System: stable role (cached) — no DLF needed for cross-artboard search
// User: artboard metadata array + query string (not cached — varies per call)
import type Anthropic from '@anthropic-ai/sdk';
import { buildSystemPrompt } from './system.js';
export const ARTBOARD_QUERY_PROMPT_VERSION = '1.0';
export interface ArtboardQueryPromptInput {
/** Natural language query from the user */
query: string;
/** Array of artboard metadata objects serialized as JSON */
artboardsJson: string;
}
/**
* Builds the system + user message pair for a cross-artboard relevance search.
* Only artboards with relevanceScore > 0.3 should be returned by the model.
*/
export function buildArtboardQueryMessages(input: ArtboardQueryPromptInput): {
system: Anthropic.Messages.TextBlockParam[];
userContent: string;
maxTokens: number;
} {
const system = buildSystemPrompt({ role: 'a search agent filtering artboards by design intent' });
const userContent =
`<artboards>\n${input.artboardsJson}\n</artboards>\n\n` +
`<query>\n${input.query}\n</query>\n\n` +
`Return a JSON object:\n` +
`{\n` +
` "results": [{"artboardId": "...", "relevanceScore": 0-1, "reason": "..."}],\n` +
` "reasoning": "brief explanation"\n` +
`}\n\n` +
`Only include artboards with relevanceScore > 0.3. Respond ONLY with valid JSON.`;
return { system, userContent, maxTokens: 1024 };
}
@@ -0,0 +1,71 @@
// ── Completion Zone Prompt ────────────────────────────────────────────────────
// Versioned prompt for filling AI Completion Zones.
//
// Version: 1.0
// Model: claude-sonnet-4-6 (spec Layer 6: "Claude Sonnet 4 API is the only AI provider")
// Tokens: max 4096 — output is a structured JSON tree
//
// Structure:
// System: stable role (cached) + DLF as a hard constraint block (cached)
// User: component tree context + optional screenshot + zone intent string
//
// The DLF is placed first (before the component tree) so it is cached across
// all completion zone calls in the same workspace session. The model must treat
// the DLF as a hard constraint: any proposed component must exist in the DLF's
// component list, and all props must pass the DLF's allowedProps rules.
import type Anthropic from '@anthropic-ai/sdk';
import { buildSystemPrompt } from './system.js';
export const COMPLETION_ZONE_PROMPT_VERSION = '1.0';
export interface CompletionZonePromptInput {
componentTreeJson: string;
intent: string;
dlfJson?: string;
screenshotBase64?: string;
}
/**
* Builds the full message array for a completion zone generation request.
* Returns a multi-part user message that includes an optional image block.
*/
export function buildCompletionZoneMessages(input: CompletionZonePromptInput): {
system: Anthropic.Messages.TextBlockParam[];
userContent: Anthropic.Messages.ContentBlockParam[];
maxTokens: number;
} {
const system = buildSystemPrompt({
role: 'a Completion Zone design agent that generates UI component trees to fill empty design regions',
...(input.dlfJson !== undefined ? { dlfJson: input.dlfJson } : {}),
});
const textBlock: Anthropic.Messages.TextBlockParam = {
type: 'text',
text:
`<component_tree>\n${input.componentTreeJson}\n</component_tree>\n\n` +
`<intent>\n${input.intent}\n</intent>\n\n` +
(input.dlfJson
? `The DLF in the system prompt is a HARD CONSTRAINT. Only use components and prop values defined there.\n\n`
: '') +
`Return a JSON object with exactly two fields:\n` +
`- "proposedTree": the updated component tree matching the intent (same shape as the input tree)\n` +
`- "description": one sentence describing what was generated and why\n\n` +
`Respond ONLY with valid JSON. No markdown, no prose outside the JSON.`,
};
const userContent: Anthropic.Messages.ContentBlockParam[] = [];
// Screenshot goes first if provided (visual context before textual context).
if (input.screenshotBase64) {
const base64Data = input.screenshotBase64.replace(/^data:image\/\w+;base64,/, '');
userContent.push({
type: 'image',
source: { type: 'base64', media_type: 'image/png', data: base64Data },
} as Anthropic.Messages.ImageBlockParam);
}
userContent.push(textBlock);
return { system, userContent, maxTokens: 4096 };
}
@@ -0,0 +1,72 @@
// ── Diff Summary Prompt ───────────────────────────────────────────────────────
// Versioned prompt for generating human-readable summaries of ComponentChange
// records and aggregate IntentDiff records.
//
// Version: 1.0
// Model: claude-sonnet-4-6 (spec Layer 6: "Claude Sonnet 4 API is the only AI provider")
// Tokens: max 300 per change summary, 500 for aggregate summary
//
// Structure:
// System: stable role (cached) + optional DLF constraint block (cached)
// User: component changes + output instruction (not cached — varies per call)
import type Anthropic from '@anthropic-ai/sdk';
import { buildSystemPrompt } from './system.js';
export const DIFF_SUMMARY_PROMPT_VERSION = '1.0';
export interface DiffSummaryPromptInput {
changesJson: string;
componentName: string;
dlfJson?: string;
}
export interface AggregateSummaryPromptInput {
changesJson: string;
artboardName: string;
dlfJson?: string;
}
/**
* Builds the system + user message pair for a single-component change summary.
* Max 300 tokens — one tight sentence for PR review readability.
*/
export function buildDiffSummaryMessages(
input: DiffSummaryPromptInput,
): { system: Anthropic.Messages.TextBlockParam[]; userContent: string; maxTokens: number } {
const system = buildSystemPrompt({
role: 'a technical writer summarizing UI component changes for pull request reviewers',
...(input.dlfJson !== undefined ? { dlfJson: input.dlfJson } : {}),
});
const userContent =
`Summarize the following changes to "${input.componentName}" in one concise sentence ` +
`(max 20 words). Focus on the user-visible impact, not technical prop names. ` +
`If the change violates a design system rule, note it.\n\n` +
`<changes>\n${input.changesJson}\n</changes>\n\n` +
`Respond with ONLY the summary sentence.`;
return { system, userContent, maxTokens: 300 };
}
/**
* Builds the system + user message pair for an aggregate IntentDiff summary.
* Max 500 tokens — a short paragraph describing all changes together.
*/
export function buildAggregateSummaryMessages(
input: AggregateSummaryPromptInput,
): { system: Anthropic.Messages.TextBlockParam[]; userContent: string; maxTokens: number } {
const system = buildSystemPrompt({
role: 'a technical writer summarizing a design session for engineering handoff',
...(input.dlfJson !== undefined ? { dlfJson: input.dlfJson } : {}),
});
const userContent =
`Write a 2-3 sentence summary of the following design changes made to the "${input.artboardName}" artboard. ` +
`Describe the combined intent — what changed and why — in terms a developer reading a PR can understand. ` +
`Do not list individual prop changes; synthesize them.\n\n` +
`<changes>\n${input.changesJson}\n</changes>\n\n` +
`Respond with ONLY the summary paragraph.`;
return { system, userContent, maxTokens: 500 };
}