lead-capture

lead-capture is a skill for Claude Code, Codex from cbrock84/headcount. It costs 69 tokens per session (545 once invoked), scanned A, original, MIT.

A guide to turning anonymous website visitors into identifiable contacts through forms, popups, downloadable resources, and free tools. A lead magnet is useful content offered in exchange for contact details.

In plain words
What is it for?
Use it to design lead magnets, plan free tools, improve forms and popups, and decide what content should require contact details.
Why use it?
It helps decide when asking for an email address is worthwhile and prevents gates that reduce useful readership without producing valuable contacts.

Skill for Claude CodeCodex

Part of the demand-generation plugin — 11 skills shipped together

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.

agentmods
npx agentmods add skills/cbrock84/headcount/lead-capture
Any agent
npx skills add cbrock84/headcount --skill lead-capture
Clone the repo
git clone --depth 1 https://github.com/cbrock84/headcount

Made for: Claude Code, Codex.

Or install demand-generation, the plugin that ships this one along with the rest of its 11 skills.

Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 545 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00069 $0.00545
Opus 5 $0.00034 $0.00272
Sonnet 5 $0.00014 $0.00109
Haiku 4.5 $0.00007 $0.00055

Measured 3d ago against content hash e2044ccaeb85, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

lead-capture 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 3d 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.

plugins/demand-generation/skills/lead-capture/SKILL.md · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Lead capture

What gating costs

Every gate trades reach for contacts. That trade is worth making only when the contact is genuinely worth more than the reader — which is true far less often than it is assumed.

Gate: things with immediate practical utility that a buyer would use during evaluation — templates, calculators, assessments, data. Do not gate: thought leadership, anything you want cited or shared, or anything a competitor publishes openly.

Lead magnets

The test is whether someone would pay a small amount for it. If not, it will not earn an email address that gets used.

The best ones are things people use rather than read: a template that saves an afternoon, a calculator that answers a specific question, a checklist for a process they are mid-way through. An ebook that restates blog posts is not one.

Match the magnet to a stage. Someone downloading a beginner's guide is not ready for a sales call, and treating them as if they are burns the list.

Free tools

The strongest form: durable, earns links, and qualifies by use rather than by claim.

Build one only if it does something genuinely useful standalone, and keep the gate light — let people use it, and ask for the email to save or export the result. Gating before value is delivered converts a fraction as well.

Popups and overlays

Popups work and are widely hated; both facts matter.

  • Trigger on behavior, not time — exit intent, scroll depth, or a second visit. A popup at three seconds interrupts someone who has not yet decided whether to care.
  • Once per visitor, remembered. Repeated interruption is what generates the hatred.
  • Never on mobile mid-content. Beyond the user cost, it is penalized.
  • Offer something specific. "Subscribe to our newsletter" is not an offer. "The pricing calculator" is.
  • One clear dismissal. Hidden or tiny close buttons cost more in reputation than they gain in conversions.

Forms

Every field costs conversion. Ask for what you need to do the next step and nothing for a later one — enrichment can fill the rest. Explain any field whose purpose is not obvious, since unexplained fields are where people abandon.

Read the full file on GitHub · 55 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. 3d ago First seen · 55 lines · 69 tokens per session scan A e2044ccaeb85

Subscribe to this mod's changes

lead-capture is a skill published in the GitHub repository cbrock84/headcount (578 stars, last pushed 4d ago), licensed MIT. It adds 69 tokens to every session and 545 once invoked, about $0.0003 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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