diff --git a/markitect/cli.py b/markitect/cli.py
index 8e272eed..d675b18a 100644
--- a/markitect/cli.py
+++ b/markitect/cli.py
@@ -7095,6 +7095,13 @@ try:
 except ImportError:
     pass  # Prompts module not available
 
+# Register helper Q&A command
+try:
+    from markitect.helper.cli import helper_command
+    cli.add_command(helper_command)
+except ImportError:
+    pass  # Helper module not available
+
 # Make cli function available as main entry point
 main = cli
 
diff --git a/markitect/helper/__init__.py b/markitect/helper/__init__.py
new file mode 100644
index 00000000..8d6211f6
--- /dev/null
+++ b/markitect/helper/__init__.py
@@ -0,0 +1,6 @@
+"""
+markitect.helper — Interactive Q&A helper for MarkiTect.
+
+Provides a CLI command that answers questions about markitect
+using its own documentation as knowledge context.
+"""
diff --git a/markitect/helper/cli.py b/markitect/helper/cli.py
new file mode 100644
index 00000000..769cee5a
--- /dev/null
+++ b/markitect/helper/cli.py
@@ -0,0 +1,101 @@
+"""
+CLI command for the markitect helper.
+"""
+
+import os
+import sys
+
+import click
+
+from markitect.helper.knowledge import collect_knowledge
+
+DEFAULT_PROVIDER = "openrouter"
+DEFAULT_MODEL = "openrouter/aurora-alpha"
+MODEL_ENV_VAR = "MARKITECT_HELPER_MODEL"
+
+SYSTEM_PROMPT_TEMPLATE = (
+    "You are a MarkiTect expert assistant. Answer the user's question "
+    "based on the following MarkiTect documentation. Be concise and "
+    "accurate. If the documentation does not cover the question, say so.\n\n"
+    "{knowledge}"
+)
+
+
+@click.command("helper")
+@click.argument("question", nargs=-1, required=True)
+@click.option(
+    "--provider", "-p",
+    default=DEFAULT_PROVIDER,
+    type=click.Choice(["openrouter", "claude-code", "gemini", "openai"]),
+    show_default=True,
+    help="LLM provider to use.",
+)
+@click.option(
+    "--model", "-m",
+    default=None,
+    help=(
+        f"Model name. Overrides {MODEL_ENV_VAR} env var and the default "
+        f"({DEFAULT_MODEL})."
+    ),
+)
+def helper_command(question, provider, model):
+    """Ask a question about MarkiTect and get an answer from the docs.
+
+    \b
+    Examples:
+        markitect helper "What is markitect?"
+        markitect helper How do schemas work
+        markitect helper -m anthropic/claude-sonnet-4 "Explain templates"
+    """
+    from markitect.llm import create_adapter
+    from markitect.llm.exceptions import LLMConfigurationError, LLMError
+    from markitect.prompts.execution.models import RunConfig
+
+    # Join multi-word question into a single string.
+    question_text = " ".join(question)
+    if not question_text.strip():
+        click.echo("Error: empty question.", err=True)
+        sys.exit(1)
+
+    # Resolve model: --model flag > env var > default.
+    resolved_model = model or os.environ.get(MODEL_ENV_VAR) or DEFAULT_MODEL
+
+    # Build knowledge context.
+    click.echo("Loading markitect knowledge base...", err=True)
+    knowledge = collect_knowledge()
+    if not knowledge:
+        click.echo("Warning: no documentation files found.", err=True)
+
+    system_prompt = SYSTEM_PROMPT_TEMPLATE.format(knowledge=knowledge)
+
+    # Create adapter.
+    try:
+        adapter = create_adapter(
+            provider=provider,
+            model=resolved_model,
+            system_prompt=system_prompt,
+        )
+    except LLMConfigurationError as exc:
+        click.echo(f"Configuration error: {exc}", err=True)
+        if "api" in str(exc).lower() or "key" in str(exc).lower():
+            click.echo(
+                "Hint: set OPENROUTER_API_KEY (or the relevant provider key) "
+                "in your environment.",
+                err=True,
+            )
+        sys.exit(1)
+
+    # Execute the question.
+    click.echo(f"Asking {provider} ({resolved_model})...", err=True)
+    try:
+        config = RunConfig(
+            model_name=resolved_model,
+            max_tokens=4000,
+            temperature=0.3,
+        )
+        response = adapter.execute_prompt(question_text, config)
+    except LLMError as exc:
+        click.echo(f"LLM error: {exc}", err=True)
+        sys.exit(1)
+
+    click.echo(response.content)
diff --git a/markitect/helper/knowledge.py b/markitect/helper/knowledge.py
new file mode 100644
index 00000000..5bc0b563
--- /dev/null
+++ b/markitect/helper/knowledge.py
@@ -0,0 +1,99 @@
+"""
+Knowledge loader for the markitect helper.
+
+Reads markitect's own documentation files and returns them as a
+concatenated string for use as LLM context.
+"""
+
+import importlib
+from pathlib import Path
+from typing import List
+
+
+# Docs to load relative to the project root, in priority order.
+_DOC_PATHS: List[str] = [
+    "INTRODUCTION.md",
+    "docs/CLI_TUTORIAL.md",
+    "docs/PROJECT_STRUCTURE.md",
+    "docs/SCHEMA_MANAGEMENT_GUIDE.md",
+    "docs/PLUGIN_SYSTEM.md",
+    "docs/ERROR_HANDLING_STRATEGY.md",
+    "docs/architecture/CAPABILITIES_ARCHITECTURE.md",
+    "docs/architecture/caching-system.md",
+    "docs/ASSET_MANAGEMENT_USER_GUIDE.md",
+    "docs/graphql_interface.md",
+    "examples/content-generator/TUTORIAL.md",
+    "examples/infospace-with-history/TUTORIAL.md",
+]
+
+# Glob patterns (relative to project root) for additional docs.
+_DOC_GLOBS: List[str] = [
+    "docs/user-guides/*.md",
+]
+
+# Modules whose docstrings to include.
+_MODULE_DOCSTRINGS: List[str] = [
+    "markitect.prompts",
+    "markitect.llm",
+]
+
+
+def _find_project_root() -> Path:
+    """Return the markitect project root directory.
+
+    Walks up from this file (markitect/helper/knowledge.py) to find the
+    directory that contains ``markitect/`` as a package *and* has a
+    ``pyproject.toml`` or ``INTRODUCTION.md``.
+    """
+    candidate = Path(__file__).resolve().parent.parent.parent
+    # Verify we landed in the right place.
+    if (candidate / "pyproject.toml").exists() or (candidate / "INTRODUCTION.md").exists():
+        return candidate
+    # Fallback: try CWD.
+    cwd = Path.cwd()
+    if (cwd / "markitect").is_dir():
+        return cwd
+    return candidate
+
+
+def collect_knowledge() -> str:
+    """Load markitect documentation and return as a single string.
+
+    Reads documentation files from the project root, concatenates them
+    with section headers, and appends relevant module docstrings.
+    Missing files are silently skipped.
+    """
+    root = _find_project_root()
+    sections: List[str] = []
+
+    # Fixed-path documents.
+    for rel_path in _DOC_PATHS:
+        filepath = root / rel_path
+        if filepath.is_file():
+            try:
+                content = filepath.read_text(encoding="utf-8")
+                sections.append(f"## {rel_path}\n\n{content}")
+            except OSError:
+                continue
+
+    # Glob-pattern documents.
+    for pattern in _DOC_GLOBS:
+        for filepath in sorted(root.glob(pattern)):
+            if filepath.is_file():
+                rel = filepath.relative_to(root)
+                try:
+                    content = filepath.read_text(encoding="utf-8")
+                    sections.append(f"## {rel}\n\n{content}")
+                except OSError:
+                    continue
+
+    # Module docstrings.
+    for mod_name in _MODULE_DOCSTRINGS:
+        try:
+            mod = importlib.import_module(mod_name)
+            if mod.__doc__:
+                sections.append(f"## Module: {mod_name}\n\n{mod.__doc__.strip()}")
+        except ImportError:
+            continue
+
+    return "\n\n---\n\n".join(sections)
diff --git a/roadmap/helper-command/PLAN.md b/roadmap/helper-command/PLAN.md
new file mode 100644
index 00000000..ce5f8b1c
--- /dev/null
+++ b/roadmap/helper-command/PLAN.md
@@ -0,0 +1,95 @@
+# Plan: `markitect helper` CLI Command
+
+## Context
+
+Add an interactive Q&A facility to markitect that answers questions about markitect itself using its own documentation as knowledge context. Uses the existing LLM adapter infrastructure with OpenRouter and `openrouter/aurora-alpha` as default.
+
+## New Files
+
+### 1. `markitect/helper/__init__.py`
+Empty package init.
+
+### 2. `markitect/helper/knowledge.py` — Knowledge Loader
+
+- `collect_knowledge() -> str` function that:
+  - Finds markitect's documentation directory relative to the package root (`Path(__file__).resolve().parent.parent.parent`)
+  - Reads key markdown files in priority order:
+    1. `INTRODUCTION.md`
+    2. `docs/CLI_TUTORIAL.md`
+    3. `docs/PROJECT_STRUCTURE.md`
+    4. `docs/SCHEMA_MANAGEMENT_GUIDE.md`
+    5. `docs/PLUGIN_SYSTEM.md`
+    6. `docs/ERROR_HANDLING_STRATEGY.md`
+    7. `docs/architecture/CAPABILITIES_ARCHITECTURE.md`
+    8. `docs/architecture/caching-system.md`
+    9. `docs/user-guides/*.md` (all files)
+    10. `examples/content-generator/TUTORIAL.md`
+    11. `examples/infospace-with-history/TUTORIAL.md`
+    12. Module docstrings from `markitect/prompts/__init__.py` and `markitect/llm/__init__.py`
+  - Concatenates with `## <filename>` section headers between each doc
+  - Skips missing files gracefully (log warning if verbose)
+  - Returns the combined knowledge string
+
+### 3. `markitect/helper/cli.py` — Click Command
+
+```python
+@click.command("helper")
+@click.argument("question", nargs=-1, required=True)  # accepts multi-word questions without quotes
+@click.option("--provider", "-p", default="openrouter",
+              type=click.Choice(["openrouter", "claude-code", "gemini", "openai"]),
+              help="LLM provider")
+@click.option("--model", "-m", default=None,
+              help="Model name (overrides MARKITECT_HELPER_MODEL env var and default)")
+```
+
+Logic:
+1. Join `question` tuple into a single string
+2. Resolve model: CLI `--model` flag → `MARKITECT_HELPER_MODEL` env var → `openrouter/aurora-alpha`
+3. Call `collect_knowledge()` to build the knowledge context
+4. Build system prompt: `"You are a markitect expert assistant. Answer questions based on the following markitect documentation:\n\n{knowledge}"`
+5. Call `create_adapter(provider, model=model, system_prompt=system_prompt)`
+6. Call `adapter.execute_prompt(question, RunConfig(max_tokens=4000, temperature=0.3))`
+7. Print `response.content` to stdout
+8. Handle errors: `LLMConfigurationError` → helpful message about API key, other `LLMError` → stderr message
+
+## Modified Files
+
+### 4. `markitect/cli.py` — Register the Command
+
+At the bottom with the other `cli.add_command()` calls, add:
+
+```python
+try:
+    from markitect.helper.cli import helper_command
+    cli.add_command(helper_command)
+except ImportError:
+    pass  # Helper module not available
+```
+
+This follows the existing pattern used for prompts, finance, etc.
+
+## Configuration
+
+- **Default provider**: `openrouter`
+- **Default model**: `openrouter/aurora-alpha`
+- **Environment variable**: `MARKITECT_HELPER_MODEL` — overrides the default model
+- **CLI flag**: `--model` / `-m` — overrides both env var and default
+- **Precedence**: `--model` flag > `MARKITECT_HELPER_MODEL` env var > `openrouter/aurora-alpha`
+
+## Key Reference Files
+
+- `markitect/cli.py` — main CLI (Click-based, `@cli.command()` pattern, register via `cli.add_command()`)
+- `markitect/llm/factory.py` — `create_adapter(provider, model, api_key, system_prompt)`
+- `markitect/llm/openrouter.py` — OpenRouterAdapter (default)
+- `markitect/prompts/execution/models.py` — `RunConfig`, `LLMResponse`
+- `markitect/prompts/execution/llm_adapter.py` — `LLMAdapter` base class (method: `execute_prompt(prompt, config) -> LLMResponse`)
+- `markitect/llm/exceptions.py` — `LLMError`, `LLMConfigurationError`, `LLMAPIError`, `LLMRateLimitError`
+- API key resolution: env var `OPENROUTER_API_KEY` or file `apikey-openrouter.txt` in project root
+
+## Verification
+
+1. `markitect helper "What is markitect?"` — should return a knowledge-based answer
+2. `markitect helper --model anthropic/claude-sonnet-4 "How do schemas work?"` — uses different model
+3. `MARKITECT_HELPER_MODEL=google/gemini-2.5-flash markitect helper "What are templates?"` — env var override
+4. `markitect helper --provider claude-code "Explain the plugin system"` — uses Claude CLI
+5. `markitect helper --help` — shows usage with all options