docs: add AGENTS.md and SCOPE.md as canonical repo instructions

These were part of the initial Grok handoff for the can-you-assist
repo integration workstream (repo-integration-can-you-assist).

- AGENTS.md: Worker protocol, State Hub integration, workplan
  convention, session start/close checklist.
- SCOPE.md: Crisp boundaries (owns CLI + orchestration, does not
  own llm-connect or phase-memory implementations).

Complements the just-added CYA-WP-0001 workplan.
Brings the documented seed state to a complete, committed baseline.

Workstream: 0a1233fd-75ab-4726-8857-6c97de939069

SCOPE.md

@@ -0,0 +1,46 @@
+# Scope: can-you-assist
+
+## Purpose
+
+`can-you-assist` provides `cya`, a console-native LLM helper for practical
+local work. It lets a terminal user ask for help in natural language, gather
+relevant local context intentionally, and receive safe, explainable assistance
+for command-line, repository, filesystem, note, and text workflows.
+
+## Owns
+
+- The `cya` command-line user experience.
+- Intent parsing and task framing for local shell work.
+- Local context collection from the current directory, selected files, stdin,
+  git state, logs, notes, and user-provided paths.
+- Safe command suggestion and explanation workflows.
+- Prompt/request orchestration against `llm-connect`.
+- Local preference and memory usage through `phase-memory`.
+- Transparent configuration and inspectable local state for this assistant.
+
+## Does Not Own
+
+- Provider-specific LLM clients or vendor credentials; that belongs in
+  `llm-connect`.
+- Long-term memory storage semantics; that belongs in `phase-memory`.
+- Global State Hub implementation or workstream indexing.
+- Autonomous shell execution without clear user confirmation.
+- Hidden, vendor-owned personalization or opaque memory.
+
+## Integrates With
+
+- `llm-connect` for backend-agnostic model access.
+- `phase-memory` for user-controlled history, preferences, and adaptation.
+- State Hub for work tracking, repo coordination, progress, and decisions.
+
+## Initial Direction
+
+The first implementation slice should establish a minimal but real CLI:
+
+- parse a natural-language request;
+- inspect current working-directory context safely;
+- produce an explainable command or answer;
+- route LLM calls through an adapter boundary shaped for `llm-connect`;
+- leave memory hooks explicit but thin until `phase-memory` integration is
+  ready;
+- include tests around command-suggestion safety and context selection.