# All files / src/trpc/routers architect.ts

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57.69% Branches 45/78
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     /**
     * Architect Router — discuss, plan, refine, detail spawn procedures
     */

    import { TRPCError } from '@trpc/server';
    import { z } from 'zod';
    import type { ProcedureBuilder } from '../trpc.js';
    import {
      requireAgentManager,
      requireInitiativeRepository,
      requirePhaseRepository,
      requirePageRepository,
      requireTaskRepository,
    } from './_helpers.js';
    import {
      buildDiscussPrompt,
      buildPlanPrompt,
      buildRefinePrompt,
      buildDetailPrompt,
    } from '../../agent/prompts/index.js';
    import { isPlanningCategory } from '../../git/branch-naming.js';
    import type { PhaseRepository } from '../../db/repositories/phase-repository.js';
    import type { TaskRepository } from '../../db/repositories/task-repository.js';
    import type { PageRepository } from '../../db/repositories/page-repository.js';
    import type { Phase, Task } from '../../db/schema.js';
    import type { PageForSerialization } from '../../agent/content-serializer.js';

    async function gatherInitiativeContext(
      phaseRepo: PhaseRepository | undefined,
      taskRepo: TaskRepository | undefined,
      pageRepo: PageRepository | undefined,
      initiativeId: string,
    ): Promise<{
      phases: Array<Phase & { dependsOn?: string[] }>;
      tasks: Task[];
      pages: PageForSerialization[];
    }> {
      const [rawPhases, deps, initiativeTasks, pages] = await Promise.all([
        phaseRepo?.findByInitiativeId(initiativeId) ?? [],
        phaseRepo?.findDependenciesByInitiativeId(initiativeId) ?? [],
        taskRepo?.findByInitiativeId(initiativeId) ?? [],
        pageRepo?.findByInitiativeId(initiativeId) ?? [],
      ]);

      // Merge dependencies into each phase as a dependsOn array
      const depsByPhase = new Map<string, string[]>();
      for (const dep of deps) {
        const arr = depsByPhase.get(dep.phaseId) ?? [];
        arr.push(dep.dependsOnPhaseId);
        depsByPhase.set(dep.phaseId, arr);
      }
      const phases = rawPhases.map((ph) => ({
        ...ph,
        dependsOn: depsByPhase.get(ph.id) ?? [],
      }));

      // Collect tasks from all phases (some tasks only have phaseId, not initiativeId)
      const taskIds = new Set(initiativeTasks.map((t) => t.id));
      const allTasks = [...initiativeTasks];
      Eif (taskRepo) {
        for (const ph of rawPhases) {
          const phaseTasks = await taskRepo.findByPhaseId(ph.id);
          for (const t of phaseTasks) {
            if (!taskIds.has(t.id)) {
              taskIds.add(t.id);
              allTasks.push(t);
            }
          }
        }
      }

      // Only include implementation tasks in agent context — planning tasks are irrelevant noise
      const implementationTasks = allTasks.filter(t => !isPlanningCategory(t.category));

      return { phases, tasks: implementationTasks, pages };
    }

    export function architectProcedures(publicProcedure: ProcedureBuilder) {
      return {
        spawnArchitectDiscuss: publicProcedure
          .input(z.object({
            name: z.string().min(1).optional(),
            initiativeId: z.string().min(1),
            context: z.string().optional(),
            provider: z.string().optional(),
          }))
          .mutation(async ({ ctx, input }) => {
            const agentManager = requireAgentManager(ctx);
            const initiativeRepo = requireInitiativeRepository(ctx);
            const taskRepo = requireTaskRepository(ctx);

            const initiative = await initiativeRepo.findById(input.initiativeId);
            Iif (!initiative) {
              throw new TRPCError({
                code: 'NOT_FOUND',
                message: `Initiative '${input.initiativeId}' not found`,
              });
            }

            const task = await taskRepo.create({
              initiativeId: input.initiativeId,
              name: `Discuss: ${initiative.name}`,
              description: input.context ?? 'Gather context and requirements for initiative',
              category: 'discuss',
              status: 'in_progress',
            });

            const prompt = buildDiscussPrompt();

            return agentManager.spawn({
              name: input.name,
              taskId: task.id,
              prompt,
              mode: 'discuss',
              provider: input.provider,
              initiativeId: input.initiativeId,
              inputContext: { initiative },
            });
          }),

        spawnArchitectPlan: publicProcedure
          .input(z.object({
            name: z.string().min(1).optional(),
            initiativeId: z.string().min(1),
            contextSummary: z.string().optional(),
            provider: z.string().optional(),
          }))
          .mutation(async ({ ctx, input }) => {
            const agentManager = requireAgentManager(ctx);
            const initiativeRepo = requireInitiativeRepository(ctx);
            const taskRepo = requireTaskRepository(ctx);

            const initiative = await initiativeRepo.findById(input.initiativeId);
            Iif (!initiative) {
              throw new TRPCError({
                code: 'NOT_FOUND',
                message: `Initiative '${input.initiativeId}' not found`,
              });
            }

            // Auto-dismiss stale plan agents
            const allAgents = await agentManager.list();
            const staleAgents = allAgents.filter(
              (a) =>
                a.mode === 'plan' &&
                a.initiativeId === input.initiativeId &&
                ['crashed', 'idle'].includes(a.status) &&
                !a.userDismissedAt,
            );
            for (const stale of staleAgents) {
              await agentManager.dismiss(stale.id);
            }

            // Reject if a plan agent is already active for this initiative
            const activePlanAgents = allAgents.filter(
              (a) =>
                a.mode === 'plan' &&
                a.initiativeId === input.initiativeId &&
                ['running', 'waiting_for_input'].includes(a.status),
            );
            if (activePlanAgents.length > 0) {
              throw new TRPCError({
                code: 'CONFLICT',
                message: 'A plan agent is already running for this initiative',
              });
            }

            const task = await taskRepo.create({
              initiativeId: input.initiativeId,
              name: `Plan: ${initiative.name}`,
              description: 'Plan initiative into phases',
              category: 'plan',
              status: 'in_progress',
            });

            const context = await gatherInitiativeContext(ctx.phaseRepository, ctx.taskRepository, ctx.pageRepository, input.initiativeId);

            const prompt = buildPlanPrompt();

            return agentManager.spawn({
              name: input.name,
              taskId: task.id,
              prompt,
              mode: 'plan',
              provider: input.provider,
              initiativeId: input.initiativeId,
              inputContext: {
                initiative,
                pages: context.pages.length > 0 ? context.pages : undefined,
                phases: context.phases.length > 0 ? context.phases : undefined,
                tasks: context.tasks.length > 0 ? context.tasks : undefined,
              },
            });
          }),

        spawnArchitectRefine: publicProcedure
          .input(z.object({
            name: z.string().min(1).optional(),
            initiativeId: z.string().min(1),
            instruction: z.string().optional(),
            provider: z.string().optional(),
          }))
          .mutation(async ({ ctx, input }) => {
            const agentManager = requireAgentManager(ctx);
            const initiativeRepo = requireInitiativeRepository(ctx);
            const pageRepo = requirePageRepository(ctx);
            const taskRepo = requireTaskRepository(ctx);

            const initiative = await initiativeRepo.findById(input.initiativeId);
            if (!initiative) {
              throw new TRPCError({
                code: 'NOT_FOUND',
                message: `Initiative '${input.initiativeId}' not found`,
              });
            }

            // Bug #10: Auto-dismiss stale (crashed/idle) refine agents before checking for active ones
            const allAgents = await agentManager.list();
            const staleAgents = allAgents.filter(
              (a) =>
                a.mode === 'refine' &&
                a.initiativeId === input.initiativeId &&
                ['crashed', 'idle'].includes(a.status) &&
                !a.userDismissedAt,
            );
            for (const stale of staleAgents) {
              await agentManager.dismiss(stale.id);
            }

            // Bug #9: Prevent concurrent refine agents on the same initiative
            const activeRefineAgents = allAgents.filter(
              (a) =>
                a.mode === 'refine' &&
                a.initiativeId === input.initiativeId &&
                ['running', 'waiting_for_input'].includes(a.status),
            );
            if (activeRefineAgents.length > 0) {
              throw new TRPCError({
                code: 'CONFLICT',
                message: `A refine agent is already running for this initiative`,
              });
            }

            const pages = await pageRepo.findByInitiativeId(input.initiativeId);

            if (pages.length === 0) {
              throw new TRPCError({
                code: 'BAD_REQUEST',
                message: 'Initiative has no page content to refine',
              });
            }

            const task = await taskRepo.create({
              initiativeId: input.initiativeId,
              name: `Refine: ${initiative.name}`,
              description: input.instruction ?? 'Review and propose edits to initiative content',
              category: 'refine',
              status: 'in_progress',
            });

            const prompt = buildRefinePrompt();

            return agentManager.spawn({
              name: input.name,
              taskId: task.id,
              prompt,
              mode: 'refine',
              provider: input.provider,
              initiativeId: input.initiativeId,
              inputContext: { initiative, pages },
            });
          }),

        spawnArchitectDetail: publicProcedure
          .input(z.object({
            name: z.string().min(1).optional(),
            phaseId: z.string().min(1),
            taskName: z.string().min(1).optional(),
            context: z.string().optional(),
            provider: z.string().optional(),
          }))
          .mutation(async ({ ctx, input }) => {
            const agentManager = requireAgentManager(ctx);
            const phaseRepo = requirePhaseRepository(ctx);
            const taskRepo = requireTaskRepository(ctx);
            const initiativeRepo = requireInitiativeRepository(ctx);

            const phase = await phaseRepo.findById(input.phaseId);
            Iif (!phase) {
              throw new TRPCError({
                code: 'NOT_FOUND',
                message: `Phase '${input.phaseId}' not found`,
              });
            }
            const initiative = await initiativeRepo.findById(phase.initiativeId);
            Iif (!initiative) {
              throw new TRPCError({
                code: 'NOT_FOUND',
                message: `Initiative '${phase.initiativeId}' not found`,
              });
            }

            // Auto-dismiss stale detail agents for this phase
            const allAgents = await agentManager.list();
            const detailAgents = allAgents.filter(
              (a) => a.mode === 'detail' && !a.userDismissedAt,
            );

            // Look up tasks to find which phase each detail agent targets
            const activeForPhase: typeof detailAgents = [];
            const staleForPhase: typeof detailAgents = [];
            for (const agent of detailAgents) {
              Iif (!agent.taskId) continue;
              const agentTask = await taskRepo.findById(agent.taskId);
              if (agentTask?.phaseId !== input.phaseId) continue;

              if (['crashed', 'idle'].includes(agent.status)) {
                staleForPhase.push(agent);
              E} else if (['running', 'waiting_for_input'].includes(agent.status)) {
                activeForPhase.push(agent);
              }
            }
            for (const stale of staleForPhase) {
              await agentManager.dismiss(stale.id);
            }
            if (activeForPhase.length > 0) {
              throw new TRPCError({
                code: 'CONFLICT',
                message: `A detail agent is already running for phase "${phase.name}"`,
              });
            }

            const detailTaskName = input.taskName ?? `Detail: ${phase.name}`;
            const task = await taskRepo.create({
              phaseId: phase.id,
              initiativeId: phase.initiativeId,
              name: detailTaskName,
              description: input.context ?? `Detail phase "${phase.name}" into executable tasks`,
              category: 'detail',
              status: 'in_progress',
            });

            const context = await gatherInitiativeContext(ctx.phaseRepository, ctx.taskRepository, ctx.pageRepository, phase.initiativeId);

            const prompt = buildDetailPrompt();

            return agentManager.spawn({
              name: input.name,
              taskId: task.id,
              prompt,
              mode: 'detail',
              provider: input.provider,
              initiativeId: phase.initiativeId,
              inputContext: {
                initiative,
                phase,
                task,
                pages: context.pages.length > 0 ? context.pages : undefined,
                phases: context.phases.length > 0 ? context.phases : undefined,
                tasks: context.tasks.length > 0 ? context.tasks : undefined,
              },
            });
          }),
      };
    }