deep-prospecting

deep-prospecting is a skill for Claude Code, Codex from DataSift-Ty-Personal/SiftStack. It costs 155 tokens per session (9,679 once invoked), scanned A, a copy of deep-prospecting-v4, MIT.

A research workflow for finding the heirs, executor, or other person who can legally approve a property sale when the owner has died or cannot be found.

In plain words
What is it for?
It is for investigating a property address, probate case, foreclosure, or other distress record and identifying the correct owner, heir, or decision-maker and their contact details.
Why use it?
It helps replace uncertain obituary, genealogy, and people-search work with sourced records and a clearer view of who needs to sign.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit It is for investigating a property address, probate case, foreclosure, or other distress record and identifying the correct owner, heir, or decision-maker and their contact details.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/datasift-ty-personal/siftstack/deep-prospecting
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add DataSift-Ty-Personal/SiftStack --skill deep-prospecting
Clone the repo
git clone --depth 1 https://github.com/DataSift-Ty-Personal/SiftStack

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for deep-prospecting

README.md
[![agentmods](https://agentmods.dev/badge/skills/datasift-ty-personal/siftstack/deep-prospecting/github.svg)](https://agentmods.dev/skills/datasift-ty-personal/siftstack/deep-prospecting)
Your own site
<a href="https://agentmods.dev/skills/datasift-ty-personal/siftstack/deep-prospecting"><img src="https://agentmods.dev/badge/skills/datasift-ty-personal/siftstack/deep-prospecting/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for deep-prospecting

Your own site · 80×15
<a href="https://agentmods.dev/skills/datasift-ty-personal/siftstack/deep-prospecting"><img src="https://agentmods.dev/badge/skills/datasift-ty-personal/siftstack/deep-prospecting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 155 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,679 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 88% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00155 $0.09679
Opus 5.5 $0.00062 $0.03872
Sonnet 5.5 $0.00031 $0.01936
Haiku 4.5 $0.00015 $0.00968

Measured 2mo ago against content hash e535c928c097, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

deep-prospecting scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

88% identical to deep-prospecting-v4 — 72 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/deep-prospecting/SKILL.md · 727 lines

How it starts

The opening of the file, as written. The whole thing — 727 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deep Prospecting

Deep prospecting is the process for identifying and verifying the heirs/decision-makers (owner/heir/executor) behind a distress lead, and determining who must actually sign for the property to sell. Core philosophy: "When everyone hits a wall, we bring a shovel."

Two Paths - Pick API-First

Path When Reliability Cost/record
Primary: API-Based Heir Resolution (recommended) You have Enformion/Endato + Trestle API access HIGH - heir set comes from the provider's relationship graph; deterministic; nothing inferred ~$2.30-3.00
Fallback: 3-Site Browser Waterfall No API access, or API returns thin data MEDIUM - manual assembly from obituaries/people-search sites; slower; hallucination risk $0-0.15 + your time

Use the Primary Path below first. It replaces hours of manual obituary and genealogy hunting with a handful of API calls and produces a grounded heir set, a signing analysis, and scored phones. Drop to the browser waterfall only when the API can't resolve a record.

Grounding rule (both paths): every name, address, phone, and relationship must come from a source you actually retrieved (an API response or a page you read). Never infer or fabricate an heir. Surface conflicts; do not resolve them by guessing.

When to Use This Skill

  • Skip trace returned no usable phone numbers
  • Called 3+ attempts with no contact
  • Vacant mailing address discovered
  • Return mail (bad address)
  • Probate cases (often only docket number available)
  • Entity/LLC ownership (need actual decision-maker)
  • Conflicting owner/address information in public records

Input Requirements

User provides any combination of:

  • Property address
  • Owner name (full or partial)
  • Filing/docket number
  • Probate case information
  • Foreclosure notice details
  • Any distress record data

Workflow Overview

For a deceased owner with API access, go straight to the Primary Path: API-Based Heir Resolution (Steps A-E) below, then produce the signing analysis - it covers identification, family tree, signers, and scored phones in a few API calls. The numbered flow below is the manual/fallback sequence and the deeper research levels.

Read the full file on GitHub · 727 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 727 lines · 155 tokens per session scan A e535c928c097

Subscribe to this mod's changes

deep-prospecting is a skill published in the GitHub repository DataSift-Ty-Personal/SiftStack (23 stars, last pushed 23d ago), licensed MIT. It adds 155 tokens to every session and 9,679 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to deep-prospecting-v4, differing in 72 lines, and is treated as a copy.

Related

deep-prospecting compared with skills from other repositories

deep-prospecting next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
deep-prospectingDataSift-Ty-Personal/SiftStackSkill2323d agoMITA155Claude Code, Codex
fto-triageanthropics/claude-for-legalSkill9.9k3d agoApache-2.0A81Claude Code
legal-holdanthropics/claude-for-legalSkill9.9k3d agoApache-2.0A68Claude Code
specification-writingwanshuiyin/Auto-claude-code-research-in-sleepSkill19k3d agoMITA49Claude Code
terms-of-servicegenspark-ai/genofficeSkill12k2d agoApache-2.0A32Claude Code, Codex
x-scorecardx-cmd/x-cmdSkill4.7k7d agoApache-2.0A57Claude Code, Codex
gesellschaftsrechtliche-satzungen-agbKlotzkette/claude-fuer-deutsches-rechtSkill1.8kyesterdayApache-2.0A69Claude Code