docs: Add directory-structure reference

README.md

@@ -185,6 +185,7 @@ Now that you're up and running, explore these guides:
 - **[Commands Reference](docs/commands-reference.md)** - Complete command documentation
 - **[Tools Reference](docs/tools-reference.md)** - Available tools for LLMs
 - **[Configuration Guide](docs/configuration-reference.md)** - Full configuration options
+- **[Directory Structure](docs/directory-structure.md)** - Map of every file and subdirectory the CLI creates under `.infer/` and `~/.infer/`
 - **[Web Terminal](docs/web-terminal.md)** - Browser-based terminal interface
 - **[Shortcuts Guide](docs/shortcuts-guide.md)** - Custom shortcuts and AI-powered snippets
 - **[A2A Agents](docs/agents-configuration.md)** - Agent-to-agent communication setup

docs/directory-structure.md

@@ -0,0 +1,155 @@
+# Directory Structure
+
+[← Back to README](../README.md)
+
+This page is a map of every file and subdirectory the `infer` CLI reads or
+writes. It complements [Configuration Reference](configuration-reference.md),
+which documents what each *option* does — this page documents where each
+*file* lives and why it exists.
+
+## Table of Contents
+
+- [The Two Layers](#the-two-layers)
+- [At a Glance](#at-a-glance)
+- [Files Seeded by `infer init`](#files-seeded-by-infer-init)
+- [Created at Runtime](#created-at-runtime)
+- [What to Commit, What to Ignore](#what-to-commit-what-to-ignore)
+
+---
+
+## The Two Layers
+
+The CLI keeps state in two locations:
+
+- **Project layer** — `.infer/`, sitting next to your code. Scoped to the
+  current project.
+- **Userspace layer** — `~/.infer/`, in your home directory. A global
+  fallback shared across all projects.
+
+Both layers contain the same *set* of files. Project values override
+userspace values. Run `infer init` for the project layer or
+`infer init --userspace` for the userspace layer — both create an
+identical seed set. See
+[Configuration Layers](configuration-reference.md#configuration-layers)
+for the full precedence rules.
+
+---
+
+## At a Glance
+
+```text
+.infer/                   # project layer (also mirrored at ~/.infer/)
+├── config.yaml           # main configuration
+├── prompts.yaml          # LLM system prompts (agent, git, conversation, tools, ...)
+├── keybindings.yaml      # chat UI keyboard shortcuts
+├── channels.yaml         # remote messaging channels (Telegram, ...)
+├── computer_use.yaml     # computer-use / vision settings
+├── agents.yaml           # A2A agent registry
+├── mcp.yaml              # MCP server registry
+├── shortcuts/            # /-prefixed chat shortcuts (built-in + custom)
+│   ├── git.yaml
+│   ├── scm.yaml
+│   ├── mcp.yaml
+│   ├── shells.yaml
+│   ├── export.yaml
+│   └── a2a.yaml
+├── .gitignore            # ignores the runtime-generated files below
+│
+│   # --- created at runtime, not by `infer init` ---
+├── conversations.db      # SQLite conversation store (when storage.type=sqlite)
+├── conversations/        # JSONL conversation store (when storage.type=jsonl)
+├── logs/                 # debug / error logs
+├── tmp/                  # scratch space for tools (exports, streamed writes, ...)
+├── bin/                  # downloaded gateway binary (binary mode)
+└── history               # chat input history (one entry per line)
+
+~/.infer/                 # userspace layer — same set of config files,
+                          # plus one extra:
+└── schedules/            # cron-driven scheduled jobs (one YAML per job)
+```
+
+---
+
+## Files Seeded by `infer init`
+
+These are the files `infer init` writes once and then leaves to you. All of
+them exist in both layers (project and userspace).
+
+- **`config.yaml`** — gateway, tools, storage, agent, chat, web and pricing
+  settings. Edit by hand or via `infer config ...`. Full option-by-option
+  reference: [Configuration Reference](configuration-reference.md).
+- **`prompts.yaml`** — system prompts the LLM sees (agent, git,
+  conversation, init, tools). Tool descriptions live under
+  `tools.<ToolName>.description`.
+- **`keybindings.yaml`** — keyboard shortcuts for the chat TUI. Edit via
+  `infer keybindings set/disable/reset` or by hand.
+- **`channels.yaml`** — remote messaging transports (Telegram, ...) and
+  per-channel allowlists. See [Channels](channels.md). On first init, a
+  legacy `channels:` block in `config.yaml` is auto-migrated here.
+- **`computer_use.yaml`** — computer-use / vision tool settings.
+  Auto-migrated from `config.yaml` on first init if the legacy block
+  exists.
+- **`agents.yaml`** — A2A agent registry (URLs, models, env vars). Manage
+  via `infer agents add/remove/list` (or `--userspace`). See
+  [A2A Agents](agents-configuration.md).
+- **`mcp.yaml`** — MCP server registry and liveness probe settings. Manage
+  via `infer mcp ...` or by hand. See [MCP Integration](mcp-integration.md).
+- **`shortcuts/*.yaml`** — `/git`, `/scm`, `/mcp`, `/shells`, `/export`,
+  `/agents` shortcuts plus any you add. Drop new YAML files into
+  `shortcuts/`. See [Shortcuts Guide](shortcuts-guide.md).
+- **`.gitignore`** — pre-populated to exclude the runtime-generated files
+  below.
+
+The split into separate YAML files (rather than one giant `config.yaml`) is
+deliberate: each concern has its own file so changes stay focused and
+reviews stay readable.
+
+---
+
+## Created at Runtime
+
+These are written by the CLI as you use it — `infer init` does **not**
+create them, and the seeded `.gitignore` already excludes them.
+
+- **`conversations.db`** *(project)* — SQLite conversation store, active
+  when `storage.type: sqlite`. See
+  [Conversation Storage](conversation-storage.md).
+- **`conversations/*.jsonl`** *(project)* — JSONL conversation store,
+  active when `storage.type: jsonl`. One file per conversation.
+- **`logs/`** *(project)* — debug and error logs. Path configurable via
+  `logging.dir` / `INFER_LOGGING_DIR`.
+- **`tmp/`** *(project)* — scratch space for tools (Write streaming chunks,
+  exports, ...). Safe to delete when the CLI is idle.
+- **`bin/`** *(project)* — downloaded gateway binary, used when running in
+  binary mode (`gateway.docker: false`).
+- **`history`** *(project)* — chat input history, one command per line.
+  Powers inline auto-completion.
+- **`schedules/<id>.yaml`** *(userspace)* — one YAML per scheduled job.
+  Written by the `Schedule` tool, hot-reloaded by the channels-manager
+  daemon. See [Scheduling](scheduling.md).
+
+---
+
+## What to Commit, What to Ignore
+
+The seeded `.gitignore` (inside `.infer/`) already excludes the runtime
+files. The general guidance:
+
+**Commit** (project-shareable configuration):
+
+- `.infer/config.yaml`, `prompts.yaml`, `keybindings.yaml`,
+  `channels.yaml`, `computer_use.yaml`, `agents.yaml`, `mcp.yaml`
+- `.infer/shortcuts/`
+- `.infer/.gitignore`
+
+**Don't commit** (machine-local or contains secrets):
+
+- `~/.infer/` — userspace config is per-user, never per-project
+- Anything under [Created at Runtime](#created-at-runtime) above
+- Any file containing API keys — prefer `%ENV_VAR%`
+  [substitution](configuration-reference.md#environment-variable-substitution)
+  or `INFER_*` environment variables
+
+---
+
+[← Back to README](../README.md)