deal-history

deal-history is a skill for Claude Code from syleedlabs/deal-locator-mcp. It costs 95 tokens per session (801 once invoked), scanned A, original, MIT.

A property-transaction history lookup for all known sales of one specific building or address, shown from newest to oldest.

In plain words
What is it for?
Use it to find previous sale prices, check whether a property changed hands, count resales, and compare prices over time when the matches are reliable.
Why use it?
It helps distinguish a building's actual resale history from unrelated nearby transactions and marks when an address match is only an estimate.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the deal-locator plugin — 7 skills, 1 MCP server shipped together

Good fit Use it to find previous sale prices, check whether a property changed hands, count resales, and compare prices over time when the matches are reliable.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/syleedlabs/deal-locator-mcp/deal-history
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 syleedlabs/deal-locator-mcp --skill deal-history
Clone the repo
git clone --depth 1 https://github.com/syleedlabs/deal-locator-mcp

Made for: Claude Code.

Or install deal-locator, the plugin that ships this one along with the rest of its 7 skills, 1 MCP server.

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 deal-history

README.md
[![agentmods](https://agentmods.dev/badge/skills/syleedlabs/deal-locator-mcp/deal-history/github.svg)](https://agentmods.dev/skills/syleedlabs/deal-locator-mcp/deal-history)
Your own site
<a href="https://agentmods.dev/skills/syleedlabs/deal-locator-mcp/deal-history"><img src="https://agentmods.dev/badge/skills/syleedlabs/deal-locator-mcp/deal-history/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 deal-history

Your own site · 80×15
<a href="https://agentmods.dev/skills/syleedlabs/deal-locator-mcp/deal-history"><img src="https://agentmods.dev/badge/skills/syleedlabs/deal-locator-mcp/deal-history.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 801 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found 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 $0.00095 $0.00801
Opus 5 $0.00048 $0.00400
Sonnet 5 $0.00019 $0.00160
Haiku 4.5 $0.00010 $0.00080

Measured 12d ago against content hash f539fa0d2f72, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

deal-history 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 12d 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.

skills/deal-history/SKILL.md · 55 lines

What it actually says

실거래 이력 (/deal-history)

$ARGUMENTS 를 해석해 deal-locator MCP 의 deal_history 를 호출하고, 매칭된 거래 이력을 최신순으로 정리해 답한다.

1) 인자 해석

  • 주소 = address. 구 동 번지 형태가 가장 정확하다.
  • N개월 = months. 없으면 기본 24개월(이력은 기간이 넓어야 의미가 있다). 재거래를 찾는 질문이면 60개월(최대)까지 늘려 부르고, 늘렸다는 사실을 밝힌다.

2) 답변 규칙 (반드시 지킬 것)

  1. 건별로 신뢰도가 다를 수 있다. 이력은 여러 거래를 각각 역매칭한 결과라, 한 건은 정확매칭이고 다른 건은 추정매칭일 수 있다. 모든 행에 신뢰도를 표기하고, 표 전체를 한 신뢰도로 뭉뚱그리지 않는다.

  2. 가격 추이·상승률은 structuredContenttransactions[] 로 계산한다. 텍스트를 파싱해 숫자를 만들지 않는다.

  3. 상승률을 말할 때는 신뢰도를 전제로 깐다. 두 거래 중 하나라도 추정매칭이면 **"동일 건물이 아닐 수 있어 상승률은 참고치"**임을 반드시 붙인다. 서로 다른 건물의 가격을 빼면 상승률이 아니라 그냥 두 건물의 가격차다.

  4. 거래가 1건뿐이면 추이를 말하지 않는다. "이력 1건"이라고만 하고 끝낸다.

  5. statusOK 가 아니면 사유를 그대로 전한다. NOT_FOUND 는 데이터 없음이지 거래가 없었다는 확정이 아니다 — 기간을 늘려 재조회할 수 있음을 안내한다.

  6. 금액은 반올림(절사 금지). 1억원/평 넘는 평단가는 억 단위를 앞에 붙인다.

3) 출력 형태

○○구 ○○동 123-4 — 최근 N개월 실거래 이력 3건

2026-06-12   115억원   1억 3,707만원/평   개인 → 법인   [정확매칭]
2023-04-02    78억원      9,300만원/평   개인 → 개인   [정확매칭]
2019-11-20    41억원      4,900만원/평   개인 → 개인   [추정매칭]
  • 표 아래 한 줄 요약 — 예: 2023 → 2026 사이 47% 상승 (두 건 모두 정확매칭). 추정매칭이 섞였으면 그 사실을 같은 줄에 밝힌다.
  • 마지막에 도구가 준 source 한 줄을 유지한다.
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. 12d ago First seen · 55 lines · 95 tokens per session scan A f539fa0d2f72

Subscribe to this mod's changes

deal-history is a skill published in the GitHub repository syleedlabs/deal-locator-mcp (27 stars, last pushed 7d ago), licensed MIT. It adds 95 tokens to every session and 801 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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