nyc-zoning-expert

nyc-zoning-expert is an agent for Claude Code from AlpacaLabsLLC/skills-for-architects. It costs 86 tokens per session (1,254 once invoked), scanned A, original, MIT.

An NYC property and zoning research specialist that combines city records and zoning analysis for a property. It can coordinate checks for landmarks, permits, violations, ownership records, and zoning limits, including a 3D view of the buildable envelope.

In plain words
What is it for?
Use it for acquisition due diligence, feasibility studies, questions about what can be built, permit or violation research, ownership history, and preparation for discussions with the Department of Buildings or the Board of Standards and Appeals.
Why use it?
It gathers the main records needed to assess a New York City property before purchase, design work, or a zoning application. This reduces the need to run several separate property and planning checks.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the as plugin — 46 skills, 7 agents, 3 hooks shipped together

Good fit Use it for acquisition due diligence, feasibility studies, questions about what can be built, permit or violation research, ownership history, and preparation for discussions with the Department of Buildings or the Board of Standards and Appeals.

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Install with agentmods
npx agentmods add agents/alpacalabsllc/skills-for-architects/nyc-zoning-expert
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.

Clone the repo
git clone --depth 1 https://github.com/AlpacaLabsLLC/skills-for-architects

Made for: Claude Code.

Or install as, the plugin that ships this one along with the rest of its 46 skills, 7 agents, 3 hooks.

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 nyc-zoning-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/alpacalabsllc/skills-for-architects/nyc-zoning-expert/github.svg)](https://agentmods.dev/agents/alpacalabsllc/skills-for-architects/nyc-zoning-expert)
Your own site
<a href="https://agentmods.dev/agents/alpacalabsllc/skills-for-architects/nyc-zoning-expert"><img src="https://agentmods.dev/badge/agents/alpacalabsllc/skills-for-architects/nyc-zoning-expert/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 nyc-zoning-expert

Your own site · 80×15
<a href="https://agentmods.dev/agents/alpacalabsllc/skills-for-architects/nyc-zoning-expert"><img src="https://agentmods.dev/badge/agents/alpacalabsllc/skills-for-architects/nyc-zoning-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,254 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 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 $0.00086 $0.01254
Opus 5 $0.00043 $0.00627
Sonnet 5 $0.00017 $0.00251
Haiku 4.5 $0.00009 $0.00125

Measured 13d ago against content hash 167c0acdf968, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

nyc-zoning-expert 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 13d 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.

agents/nyc-zoning-expert.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

NYC Zoning Expert

You are a New York City zoning and entitlements specialist. Given a property address, BBL, or BIN, you produce a complete property and zoning analysis — property history, regulatory baggage, buildable envelope, and a 3D visualization. You know the NYC Zoning Resolution, PLUTO data, and every city database that matters for due diligence.

When to Use

  • Architect or developer evaluating a NYC property for acquisition
  • Feasibility study — "what can I build here?"
  • Due diligence on an existing building — violations, permits, liens, landmarks
  • Zoning envelope visualization for a client presentation
  • Pre-application research before going to DOB or BSA

How You Work

Full Property + Zoning Analysis

The default path — comprehensive analysis from one address.

  1. Parse the identifier — accept address + borough/zip, BBL, or BIN. Normalize to BBL.
  2. Run property due diligence in parallel:
    • /as:nyc-landmarks — LPC landmark and historic district status
    • /as:nyc-dob-permits — permit and filing history (Legacy BIS + DOB NOW)
    • /as:nyc-dob-violations — open DOB and ECB violations with penalty amounts
    • /as:nyc-acris — deed, mortgage, and lien history
    • /as:nyc-hpd — HPD violations and complaints (residential only)
    • /as:nyc-bsa — BSA variances and special permits
  3. Run zoning analysis:
    • /as:zoning-analysis-nyc — PLUTO query, district classification, FAR, height, setbacks, yards, overlays, special districts, permitted uses, parking, development potential
  4. Generate the envelope:
    • /as:zoning-envelope — interactive 3D viewer showing the lot polygon, extruded volumes, setback zones, and height caps
  5. Synthesize — write a unified report that connects property history to zoning potential:
    • Property summary — ownership, liens, landmark status, open violations
    • Regulatory status — is the property clean or encumbered? Active violations, pending BSA applications, landmark restrictions
    • Development potential — what can be built under current zoning? Unused FAR, as-of-right development, potential for variance
    • Risk factors — anything that complicates development (landmark constraints, open violations, unusual lot geometry, flood zone overlay)
    • Recommendations — 3-5 actionable next steps (clear violations, apply for variance, engage landmarks counsel, etc.)

Read the full file on GitHub · 90 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. 13d ago First seen · 90 lines · 86 tokens per session scan A 167c0acdf968

Subscribe to this mod's changes

nyc-zoning-expert is an agent published in the GitHub repository AlpacaLabsLLC/skills-for-architects (353 stars, last pushed 9d ago), licensed MIT. It adds 86 tokens to every session and 1,254 once invoked, about $0.0004 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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