What is Unit Economics Calculator & Strategist?

A coaching and review tool for product managers working with unit economics—the financial results of acquiring and serving one customer. It covers customer acquisition cost, customer lifetime value, their ratio, and the time needed to recover acquisition cost.

Use it to calculate or review CAC, LTV, LTV:CAC, and payback period, choose which business lever to improve, and create a plan to validate the numbers.

It helps find calculation mistakes and prevents plans from relying on vague claims such as making losses back through higher sales volume.

Unit Economics Calculator & Strategist — Skill by BrennanJCollins

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 BrennanJCollins/UnabatedPM-coaching --skill unit-economics-calculator

Clone the repo

git clone --depth 1 https://github.com/BrennanJCollins/UnabatedPM-coaching

Made for: Claude Code.

Or install unabatedpm-business-building, the plugin that ships this one along with the rest of its 8 skills, 1 command.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/brennanjcollins/unabatedpm-coaching/unit-economics-calculator/github.svg)](https://agentmods.dev/skills/brennanjcollins/unabatedpm-coaching/unit-economics-calculator)

Your own site

<a href="https://agentmods.dev/skills/brennanjcollins/unabatedpm-coaching/unit-economics-calculator"><img src="https://agentmods.dev/badge/skills/brennanjcollins/unabatedpm-coaching/unit-economics-calculator/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/brennanjcollins/unabatedpm-coaching/unit-economics-calculator"><img src="https://agentmods.dev/badge/skills/brennanjcollins/unabatedpm-coaching/unit-economics-calculator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 93 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 7,674 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.

Model	Per session	Once invoked
Fable 5.1	$0.00093	$0.07674
Opus 5.5	$0.00037	$0.03070
Sonnet 5.5	$0.00019	$0.01535
Haiku 4.5	$0.00009	$0.00767

Measured 2mo ago against content hash 2ff299f9bdf9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Unit Economics Calculator & Strategist 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.

unabatedpm-business-building/skills/unit-economics-calculator/SKILL.md · 914 lines

How it starts

The opening of the file, as written. The whole thing — 914 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Operating Modes

This skill operates in two modes:

Conversation mode (default): Coach the PM through unit economics calculations interactively. Triggered by direct invocation or natural conversation.

Evaluate mode: Read a document silently, score its unit economics rigor, and return structured findings. No conversation, no questions — just assessment. Triggered by the /audit orchestrator.

Evaluate Mode Instructions

When invoked in evaluate mode, you receive a business case, ROI model, or financial document. Do NOT coach. Do NOT ask questions. Read and score.

Score each dimension 1-5:

1 = Not present or fundamentally broken
2 = Attempted but significant gaps
3 = Competent but missing key elements
4 = Strong with minor improvements possible
5 = Exemplary — would pass CFO review

Dimensions to evaluate:

Business models & pitching internally — Does the document contain actual unit economics (CAC, LTV, LTV:CAC, payback period)? Are they calculated correctly (margin-based LTV, not revenue-based)? Are they fully-loaded (all costs included)? Or does it hand-wave with "this will drive growth" without numbers?
Pricing & monetization — Does it address pricing strategy with rationale? Does it show how pricing connects to unit economics? Does it model scenarios (what if churn changes, what if price increases)? Or is pricing absent or assumed?

Red flags to check:

Revenue used instead of margin for LTV
"We'll make it up on volume" without proof
Blended metrics hiding channel-specific problems
No validation plan for assumptions
Missing expansion revenue in LTV
No payback period calculation
Churn assumed constant without cohort data

Return format:

SKILL: Unit Economics Calculator
CATEGORIES SCORED:
- Business models & pitching internally: [X]/5
  Evidence: "[exact quote from document]"
  Gap: [what's missing — specific formula, calculation, or rigor issue]
  Upgrade: [single highest-leverage change]
- Pricing & monetization: [X]/5
  Evidence: "[exact quote from document]"
  Gap: [what's missing]
  Upgrade: [single highest-leverage change]

Read the full file on GitHub · 914 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.

2mo ago First seen · 914 lines · 93 tokens per session scan A 2ff299f9bdf9

Subscribe to this mod's changes

Unit Economics Calculator & Strategist is a skill published in the GitHub repository BrennanJCollins/UnabatedPM-coaching (5 stars, last pushed 2mo ago), licensed MIT. It adds 93 tokens to every session and 7,674 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-08-31.

Analytics and metrics Finance and fintech ai-coaching ai-prompts career-development claude-skills mentorship pm-skills

Unit Economics Calculator & Strategist next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
Unit Economics Calculator & StrategistBrennanJCollins/UnabatedPM-coaching	Skill	5	2mo ago	MIT	A	93	Claude Code
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agent-era-pricingmohitagw15856/pm-claude-skills	Skill	1.5k	yesterday	MIT	A	108	Claude Code
collections-emailmohitagw15856/pm-claude-skills	Skill	1.5k	yesterday	MIT	A	84	Claude Code
financial-statement-analysiscbrock84/headcount	Skill	2.6k	19d ago	MIT	A	93	Claude Code