# User Guide Action-Marker Line Extraction

> User Guide Action-Marker Line Extraction is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Extracts action-marker lines (e.g. TODO items, deadlines, flagged tasks) from user guide Markdown or plain text documents using deterministic processing

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-writing-user-guide-action-lines?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/user-guide-action-marker-line-extraction-e71b644e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OPeXppdLNBcUmzmKN7c00

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability user-guide-action-marker-line-extraction-e71b644e -d '<json body>'
```

Example prompt: Pull out all the action-marker lines from this user guide — here's the Markdown text: '## Overview
Example 1 content.
TODO: review the supplied document by 2026-10-10.

## Steps
Example 2 content.
TODO: review the supplied document by 2026-10-10.'

## When to prefer this

Choose this endpoint when you need deterministic, rule-based extraction of action-marker lines (TODOs, flagged tasks, deadlines) from user guide Markdown or plain text documents up to 20,000 characters. It is not a generative or AI-prose service — prefer it when reproducibility and consistency matter over creative summarization.

## Known failure modes

- Input text exceeds 20,000 character limit — request will be rejected or truncated
- Input contains no action-marker lines — result will be an empty list
- Malformed or non-Markdown input may reduce extraction accuracy
- Payment of 0.01 USDC not fulfilled — request will not be processed

## How this service works

User guide - Action-marker line extraction: Action-marker line extraction for User guide. Supplied Markdown or plain text, up to 20,000 characters. Deterministic processing and document templates; no generative prose or fact checking. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded action-marker line extraction deliverable.

## Output

A bounded, deterministic list of action-marker lines (such as TODO items and deadline-flagged lines) extracted from the submitted user guide text, with no generative prose or added content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "default": "## Overview\nExample 1 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Steps\nExample 2 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Troubleshooting\nExample 3 content.\nTODO: review the supplied document by 2026-10-10.",
   "maxLength": 20000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/user-guide-action-marker-line-extraction-e71b644e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)