AGENTS.md.example: advertise the jerboa MCP server and tools

ober

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@@ -14,6 +14,45 @@ Never write raw Chez `.sls` files with `#!chezscheme` + R6RS
 application logic in another language (shell, Python, Rust, etc.) — that
 bypasses Jerboa entirely and defeats the purpose of these repos.
 
+## Jerboa MCP server — USE IT
+
+You have a **`jerboa` MCP server** connected. Do not guess at Jerboa syntax,
+module paths, or function signatures from memory — Jerboa is not a public
+language, so your training data is unreliable here. **Look it up and verify
+with the tools instead.** Re-check after every edit.
+
+Core tools (call them by these names):
+
+| Tool | Use it to |
+|------|-----------|
+| `jerboa_compile_check` | Compile a file or snippet and see real errors. **Run after every edit.** Pass `file_path` + `project_path` (repo root). |
+| `jerboa_run_tests` | Run a test file/suite. Pass `file_path` + `project_path`. |
+| `jerboa_eval` | Evaluate an expression to check behavior before wiring it in. |
+| `jerboa_check_syntax` | Fast syntax-only check (no full compile). |
+| `jerboa_make` | Build via the project's build setup. |
+| `jerboa_apropos` | **Search for symbols/procedures by keyword** when you don't know the name. |
+| `jerboa_module_exports` | List everything a `(std …)` module exports. |
+| `jerboa_module_exists` | Confirm a module path before importing it. |
+| `jerboa_function_signature` | Get a procedure's exact arity/signature. |
+| `jerboa_howto` / `jerboa_howto_get` | Search and read cookbook recipes for common patterns. |
+| `jerboa_verify` | Run the project's verification/checks. |
+| `jerboa_security_scan` / `jerboa_security_profile` | Audit code for unsafe patterns. |
+
+### Finding additional tools
+
+The list above is the common set; the server exposes more. To discover them:
+
+- Call the **`jerboa` dispatcher** with `{"tool": "list"}` to enumerate every
+  available tool, and `{"tool": "describe", "args": {"name": "<tool>"}}` to get
+  one tool's arguments. Write tools (e.g. `howto_add`, `suggest_feature`) live
+  behind this dispatcher — call them as `{"tool": "<name>", "args": {…}}`.
+- Use `jerboa_apropos` to find the right procedure when you only know what it
+  should *do*, and `jerboa_module_exports` to see what a module offers.
+
+**Workflow:** look up the API (`apropos` / `module_exports` / `function_signature`)
+→ write Jerboa → `jerboa_compile_check` → fix → `jerboa_run_tests`. Don't
+brute-force compile-fail loops when a one-line lookup answers the question.
+
 ## Build Contract
 
 The Makefile must provide these targets: