# Technical Design Action-Marker Line Extraction

> Technical Design 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 2026-10-18).

Extracts action-marker lines (e.g. TODO items with dates) from technical design documents in Markdown or plain text

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-writing-technical-design-action-lines?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/technical-design-action-marker-line-extraction-0a5be7d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l8Nj-MX9vrrbxAfTPgFdH

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 technical-design-action-marker-line-extraction-0a5be7d1 -d '<json body>'
```

Example prompt: Scan this technical design document and pull out all the action-marker lines — here's the Markdown: '## Architecture
Example content.
TODO: review the supplied document by 2026-10-10.

## Interfaces
Example content.
TODO: finalize interface spec by 2026-11-01.'

## When to prefer this

Choose this endpoint when you need deterministic, rule-based extraction of action-marker lines (such as TODO items) from technical design documents in Markdown or plain text, and do not want generative AI to infer or fabricate action items. Ideal for document audits, sprint planning intake, and automated design review pipelines where reproducibility matters.

## Known failure modes

- Input text exceeds 20,000 character limit — request will be rejected or truncated
- No action-marker lines present in document — returns empty result set
- Malformed or non-Markdown input may reduce extraction accuracy
- Payment of 0.01 USDC not fulfilled — endpoint returns 402 Payment Required

## How this service works

Technical design - Action-marker line extraction: Action-marker line extraction for Technical design. 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 set of action-marker lines extracted from the submitted technical design document — typically TODO entries with associated dates or owners, returned as a structured list without any generative prose or inferred content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "default": "## Architecture\nExample 1 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Interfaces\nExample 2 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Trade-offs\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/technical-design-action-marker-line-extraction-0a5be7d1/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)