# Factory Droid

> Set up Spicrawl in Factory's Droid CLI: add the hosted MCP server with an API-key header, install the agent skill, and add AGENTS.md rules so the agent fetches web pages cheaply and handles errors correctly.

Source: https://docs.spicrawl.com/agents/factory

Three steps give Droid Spicrawl's tools, the knowledge to write Spicrawl code, and rules for using both well. Set your key first. Droid substitutes a header value only when the whole value is one variable, so the variable holds the full header value:

```bash
export SPICRAWL_AUTH="Bearer spicrawl_live_..."   # add to your shell profile
```

The `spicrawl init` command does not support Droid, so set it up with the steps below.

## 1. Add the MCP server

Spicrawl's server authenticates with an API key in the `Authorization` header and does not support OAuth. Droid tries OAuth discovery on remote servers by default, so add `--no-oauth`:

```bash
droid mcp add spicrawl https://mcp.spicrawl.com/mcp --type http --no-oauth \
  --header "Authorization: Bearer $SPICRAWL_API_KEY"
```

Here your shell expands `$SPICRAWL_API_KEY`, so Droid stores the literal key in your user config, `~/.factory/mcp.json`. To keep the key out of the file, write the entry yourself and let Droid read `SPICRAWL_AUTH` when it connects:

```json title="~/.factory/mcp.json"
{
  "mcpServers": {
    "spicrawl": {
      "type": "http",
      "url": "https://mcp.spicrawl.com/mcp",
      "headers": { "Authorization": "${SPICRAWL_AUTH}" },
      "oauth": false
    }
  }
}
```

Droid reads `mcp.json` at three levels: `~/.factory/mcp.json` (you), `.factory/mcp.json` in an ancestor folder, and `.factory/mcp.json` in the project root. Factory's docs warn against putting header tokens in the project-level file, since it is committed. The `${SPICRAWL_AUTH}` reference holds no secret, but keep the entry in the user file anyway so teammates are not forced to use the same variable name. Droid expands `${NAME}` only in `env`, `headers` and OAuth fields, not in `url`, and if the variable is unset the connection fails with an error naming it.

Run `/mcp` in a session (or `droid mcp list` outside one). `spicrawl` should be enabled and list 25 `spicrawl_*` tools. See [MCP server](https://docs.spicrawl.com/agents/mcp.md) for each tool.

## 2. Install the skill

Droid loads a skill from any `skills/<name>/SKILL.md` under `.factory/skills/` in the project, or `~/.factory/skills/` for every project. It also reads `.agents/skills/` as a compatibility location:

```bash
mkdir -p .factory/skills/spicrawl
curl -fsSL https://app.spicrawl.com/skill.md -o .factory/skills/spicrawl/SKILL.md
```

Droid lists each skill's name and description and loads the full body when a task matches. See [Agent skill](https://docs.spicrawl.com/agents/skill.md).

## 3. Add rules to AGENTS.md

Droid reads `AGENTS.md` from the working directory up to the git root (also inside `.factory/` and `.agents/` at each level), plus `~/.factory/AGENTS.md` for every project. Nearer files override farther ones. Paste this section into `AGENTS.md` at the project root:

```markdown title="AGENTS.md"
# Web data (Spicrawl)

Use Spicrawl to read web pages: the spicrawl_* MCP tools in chat, or
POST https://api.spicrawl.com/v1/scrape with `Authorization: Bearer $SPICRAWL_API_KEY` in code.
Docs: https://docs.spicrawl.com/llms.txt (append .md to any page URL for Markdown).

- Ask for markdown: `response_format: "markdown"` (API default is html); on spicrawl_scrape, `format: "markdown"`.
- Check the site's status, not only the HTTP status: `X-Target-Status` header, or `status`
  in the JSON envelope (spicrawl_scrape with `format: "json"`). 200 is the page; 404/410
  mean it does not exist; 403/429/503 mean the site refused, so escalate.
- On an error, switch on `code`. Retry only when `retryable` is true, after
  `retry_after_seconds`. Read `diagnostics.hint` and change what it names first.
  Never retry ERR::REQUEST::*, ERR::AUTH::* or ERR::LIMIT::QUOTA_EXCEEDED.
- Escalate one step at a time and stop at the first that works:
  plain fetch (1 credit) -> `js_render: true` (3) -> add the user's own `proxy`
  if they have one. Empty or skeleton content means render; ERR::UPSTREAM::CHALLENGE
  or a 403 target status means retry once, then the user's own proxy.
- Set `max_cost` on every request to the price of the step you intend.
- Keep the cache on (default). Set `cache: false` only for prices, stock or other live data.
- Trim tokens with `main_content_only` (on by default for markdown), `include_tags`, `exclude_tags`.
- For more than 20 URLs, use a batch job (spicrawl_batch_submit / POST /v1/batch).
  Batch items return raw HTML and apply only render, proxy and block_resources settings.
- Never print or commit SPICRAWL_API_KEY. Log `X-Request-Id` for failures.
```

## A first task to try

Start `droid` in the project and ask:

```text
Use Spicrawl to read https://example.com/pricing as markdown. List each plan with its monthly price.
If the page comes back empty, retry with rendering.
```

The agent should call `spicrawl_scrape` with `url` and `format: "markdown"`, and add `render: true` only if the first result is empty. For a coding task:

```text
Add a fetchPage(url) function to this project that calls the Spicrawl API for markdown,
following the Web data rules in AGENTS.md. Read the key from process.env.SPICRAWL_API_KEY.
```

Compare the result with the reference implementation in [Best practices](https://docs.spicrawl.com/agents/best-practices.md).

## Troubleshooting

| Symptom                                                                       | Fix                                                                                                                                                        |
| ----------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| The connection fails with an error naming `SPICRAWL_AUTH`                     | The variable is not set in the shell that started `droid`. Export it and restart.                                                                          |
| A 401 with `Bearer ${SPICRAWL_API_KEY}` in the header                         | Droid expands a variable only when it is the whole header value. Put `Bearer ` and the key in one variable (`SPICRAWL_AUTH`) and use `"${SPICRAWL_AUTH}"`. |
| Droid opens a browser or shows an OAuth prompt for `spicrawl`                 | Spicrawl has no OAuth. Re-add the server with `--no-oauth`, or set `"oauth": false` in `mcp.json`.                                                         |
| The agent writes `js_render` on `spicrawl_scrape` and gets "unknown argument" | The tool's argument is `render`. The API field is `js_render`.                                                                                             |
| Usage tools return `ERR::AUTH::INSUFFICIENT_SCOPE`                            | Grant the `read` scope to the key in the dashboard.                                                                                                        |