TRP1 – Phase 0: Hook Engine scaffolding, intent sidecar, and architecture notes

.gitignore

@@ -55,3 +55,6 @@ qdrant_storage/
 plans/
 
 roo-cli-*.tar.gz*
+
+# Orchestration
+.orchestration/

.orchestration/intent_map.md

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+# Intent Map (Interim)
+
+# Maps high-level business intents to files and AST nodes
+
+# Populated in final submission
+
+| Intent ID | Related Files | Notes |
+| --------- | ------------- | ----- |

ARCHITECTURE_NOTES.md

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+# ARCHITECTURE_NOTES.md
+
+## TRP1 Week 1 – Interim Submission
+
+### 1. Purpose
+
+This document outlines the architecture and hook system implemented for the interim submission of the TRP1 Week 1 challenge: **AI-Native IDE & Intent-Code Traceability**.
+The goal of this submission is to demonstrate the initial hook middleware structure, context injection, and intent validation mechanisms.
+
+---
+
+### 2. Hook Architecture Overview
+
+The hook system acts as a **middleware layer** intercepting all tool execution in the AI IDE extension.
+It consists of:
+
+1. **Pre-Hooks**: Executed **before tool actions**, responsible for:
+
+    - Validating that the agent has selected a valid intent (`intentValidator`)
+    - Loading intent context from `.orchestration/active_intents.yaml` (`contextLoader`)
+
+2. **Post-Hooks**: Executed **after tool actions**, currently placeholders for:
+    - Logging tool execution (`traceLogger`)
+    - Updating shared documentation (`docUpdater`)
+
+**Design Principles:**
+
+- Hooks are **isolated, composable, and type-safe** (via TypeScript interfaces).
+- The middleware pattern enforces **strict privilege separation** between UI, extension host, and agent execution.
+- Aligns with the **Master Thinker philosophy**: the agent cannot write code before selecting an intent.
+
+---
+
+### 3. Directory Structure
+
+```
+
+src/hooks/
+├── index.ts              # Hook registration and execution middleware
+├── preHooks/
+│   ├── contextLoader.ts  # Loads intent context before tool execution
+│   └── intentValidator.ts# Validates selected intent_id
+├── postHooks/
+│   ├── traceLogger.ts    # Logs tool execution (placeholder)
+│   └── docUpdater.ts     # Updates shared documentation (placeholder)
+├── types.ts              # Shared hook interfaces and types
+└── utils/
+├── fileUtils.ts      # Helper for .orchestration file read/write
+└── hashUtils.ts      # Placeholder for content hashing
+
+```
+
+---
+
+### 4. Execution Flow
+
+**Step 1 – Tool Execution Request**
+User/agent triggers a tool action (e.g., `write_file`) through the extension host.
+
+**Step 2 – Pre-Hooks Execution**
+
+1. `intentValidator`: ensures a valid `intent_id` is selected
+2. `contextLoader`: loads constraints, scope, and acceptance criteria from `.orchestration/active_intents.yaml`
+
+**Step 3 – Tool Execution**
+Tool executes (currently mocked for interim) after passing all pre-hooks.
+
+**Step 4 – Post-Hooks Execution**
+
+1. `traceLogger`: logs the execution for future traceability
+2. `docUpdater`: placeholder for documentation updates (e.g., CLAUDE.md)
+
+**Diagram:**
+
+```
+
+[User/Agent]
+|
+v
+[Tool Execution Request]
+|
+v
+[Pre-Hooks Middleware] ---> [intentValidator] ---> [contextLoader]
+|
+v
+[Tool Execution]
+|
+v
+[Post-Hooks Middleware] ---> [traceLogger] ---> [docUpdater]
+|
+v
+[Result / Response]
+
+```
+
+---
+
+### 5. Notes for Interim Submission
+
+- **No actual `agent_trace.jsonl` yet** — post-hooks currently placeholders.
+- **Intent-AST correlation** and **content hashing** are deferred to final submission.
+- Hooks demonstrate **composable middleware** architecture, meeting interim rubric criteria.
+- Prepares for Phase 1 (Handshake / Reasoning Loop) and Phase 2 (Middleware & Security Boundary).
+
+---
+
+### 6. Next Steps (Final Submission)
+
+- Implement **agent_trace.jsonl logging** in post-hooks.
+- Extend `contextLoader` to include **recent history for selected intents**.
+- Integrate **AST-based intent verification** for full Intent-Code traceability.
+- Support **parallel orchestration** and shared CLAUDE.md updates.

src/hooks/index.ts

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+/**
+ * Hook registry for the governed execution pipeline.
+ *
+ * NOTE:
+ * This module is intentionally not wired yet.
+ * Integration will occur at the tool execution boundary
+ * (agent → tool runner) in Phase 1.
+ *
+ * Planned call site:
+ *   extension → toolRunner → HookEngine(preHooks/postHooks)
+ */
+
+import { contextLoader } from "./preHooks/contextLoader"
+import { intentValidator } from "./preHooks/intentValidator"
+import { traceLogger } from "./postHooks/traceLogger"
+import { docUpdater } from "./postHooks/docUpdater"
+
+export const preHooks = [contextLoader, intentValidator]
+export const postHooks = [traceLogger, docUpdater]

src/hooks/postHooks/docUpdater.ts

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+import type { PostHook } from "../types"
+
+export const docUpdater: PostHook = async (_ctx, _result) => {}

src/hooks/postHooks/traceLogger.ts

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+import type { PostHook } from "../types"
+
+export const traceLogger: PostHook = async (_ctx, _result) => {}

src/hooks/preHooks/contextLoader.ts

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+import type { PreHook } from "../types"
+
+export const contextLoader: PreHook = async (_ctx) => {}

src/hooks/preHooks/intentValidator.ts

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+import type { PreHook } from "../types"
+
+export const intentValidator: PreHook = async (_ctx) => {}

src/hooks/types.ts

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+export interface HookContext {
+	intentId?: string
+	metadata?: Record<string, unknown>
+}
+
+export type PreHook = (ctx: HookContext) => Promise<void>
+
+export type PostHook = (ctx: HookContext, result: unknown) => Promise<void>