AGENTS.md: fix duplicate section, update build targets, add toolsrv architecture

- Removed duplicated Submodule/Environment section
- Updated build targets to match actual justfile
- Added two-process model explanation (olliesrv + toolsrv)
- Clarified that ALL tools go through toolsrv
- Fixed data/agents path reference

AGENTS.md

@@ -55,23 +55,21 @@ Prompt and tool files live in `data/`. The `just install-data` target copies the
 | `kde/` | KDE-specific tool scripts (`gui_*`) | `just install-kde` |
 ## Build System
 ```bash
-# Build everything:
+# Build and install everything:
 just
-# Individual targets:
+# Individual build targets:
 just ninep        # olliesrv + ollie-9p
-just acme         # acme frontend
+just toolsrv      # tool server binary
+just core         # core Go packages
 just kde          # KDE integration (cmake with ~/.local prefix)
-just ollie-remote # remote execution binary
-# Install targets (run automatically by the top-level paths):
+just lsp-tools    # LSP tool binaries
+# Install targets:
 just install-data     # agents, prompts, tools, skills → ~/.config/ollie/
-just install-scripts  # CLI scripts → ~/.config/ollie/scripts/
-just install-contrib  # contrib scripts → ~/bin/
-just install-kde      # KDE plugins, desktop file, env → ~/.local/
 just install-el       # ellie.el → ~/.config/emacs/ellie/
 # Test:
 just test         # run all tests
-just test-core    # core tests only
-just test-9p      # 9p tests only
+just test-core    # core Go tests
+just test-9p      # 9p integration tests
 # Lifecycle:
 just uninstall    # remove all installed files
 just clean        # remove build artifacts
@@ -103,12 +101,13 @@ just test-remote
 - Prompts: markdown, concise, example-driven. Follow the pattern in existing `tools-*.md` files.
 ## Architecture (key concepts)
 1. **One integration surface**: 9P filesystem. Sessions at `session/{sname}/agent/{aname}/`. All control via `ctl` (rdwr: write command, read response). Tools, skills, memory on physical filesystem via env vars.
-2. **Agent loop** (`cmd/olliesrv/internal/agent/loop.go`): Streaming LLM call → parse tool calls → dispatch → loop until no more tool calls or max steps.
-3. **Tool dispatch** (`cmd/toolsrv/`): All tools execute remotely through a per-session tool server process. Tools are external scripts resolved from `$XDG_CONFIG_HOME/ollie/tools`. Load via `ctl tool_load <name>`.
-4. **Sandbox** (`cmd/toolsrv/internal/sandbox/`): Landlock-based. Config in `sandbox/*.yaml` defines filesystem access per profile. Escape via bypass broker (`cmd/olliesrv/internal/bypass/`).
-5. **Backends** (`cmd/olliesrv/internal/backend/`): Ollama, OpenAI-compatible, Anthropic, Copilot, Kiro, Gemini. Selectable per-session.
-6. **Prompts assembled at runtime**: Agent JSON `prompt` array specifies which prompt files to concatenate. Static prompt files can be included directly; the base system prompt is embedded in the binary and always prepended.
-7. **9P namespace declared via virtfs EDSL**: The entire filesystem is a single recursive `FsNodeDecl` tree in `cmd/olliesrv/internal/fs/spec.go`, built by `virtfs.BuildTree()`. Every handler is an inline closure — no indirection.
+2. **Two-process model**: Each session runs an `olliesrv` (the 9P namespace, agent loop, backends) and a per-session `toolsrv` (sandboxed tool execution). They communicate over a Unix socket using 9P. The toolsrv is spawned by olliesrv at session creation and has its own namespace (`/proc/new`, `/ctl`, `/tools`, etc.).
+3. **Agent loop** (`cmd/olliesrv/internal/agent/loop.go`): Streaming LLM call → parse tool calls → dispatch to toolsrv → loop until no more tool calls or max steps.
+4. **Tool dispatch**: ALL tools (including `reasoning_think`, `file_read`, `shell`) execute through the per-session toolsrv. The agent holds a `*toolsrv.Conn` (9P client) and calls `CallTool(name, args)` which writes to `proc/new` and reads the result. Tool registry is per-agent, keyed by agent ID in the protocol.
+5. **Sandbox** (`cmd/toolsrv/internal/sandbox/`): Landlock-based. Config in `sandbox/*.yaml` defines filesystem access per profile. Escape via bypass broker (`cmd/olliesrv/internal/bypass/`).
+6. **Backends** (`cmd/olliesrv/internal/backend/`): Ollama, OpenAI-compatible, Anthropic, Copilot, Kiro, Gemini. Selectable per-session.
+7. **Prompts assembled at runtime**: Agent JSON `prompt` array specifies which prompt files to concatenate. The base system prompt is embedded in the binary and always prepended.
+8. **9P namespace declared via virtfs EDSL**: The entire filesystem is a single recursive `FsNodeDecl` tree in `cmd/olliesrv/internal/fs/spec.go`, built by `virtfs.BuildTree()`. Every handler is an inline closure — no indirection. Same pattern in `cmd/toolsrv/internal/fs/spec.go`.
 ## Key Files
 | What | Where |
 |------|-------|
@@ -155,7 +154,7 @@ Both paths produce the same result: an executable + `.meta` in `$XDG_CONFIG_HOME
 The registry doesn't distinguish between scripts and binaries.
 ## Adding a new prompt
 1. Write the markdown file in `data/prompts/`
-2. If it should be loaded by default, reference it in `agents/default.json`
+2. If it should be loaded by default, reference it in `data/agents/default.json`
 3. Run `just install-data` to install
 ## Submodule workflow
 The only remaining submodule is `kde/`. For KDE:
@@ -172,18 +171,3 @@ git commit -m "update kde submodule"
 ```
 Each submodule has its own remote at `ssh://lkn@lneely.de:44220/lkn/ollie-{name}.git`.
 When cloning, use `--recurse-submodules` or run `git submodule update --init --recursive`.
-## Environment
-The only remaining submodule is `kde/`. For KDE:
-```bash
-# Update KDE submodule:
-git submodule update --remote --merge kde
-# Work in the KDE submodule:
-cd kde
-# ... make changes, commit ...
-git push
-cd ..
-git add kde
-git commit -m "update kde submodule"
-```
-Each submodule has its own remote at `ssh://lkn@lneely.de:44220/lkn/ollie-{name}.git`.
-When cloning, use `--recurse-submodules` or run `git submodule update --init --recursive`.