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Venture — is it worth building?
Brief 64

Market Size & Timing

Bottom-up sizing with the arithmetic shown, growth read from primary signals, and the why-now case argued both ways — no analyst-deck TAM theater.

MARKET.md4 phases7 lenses~3.1k chars

Free & open · no signup · read-only — it ends by asking · nothing leaves your machine

What it does

You are working inside this repo — the research workspace for this venture. Mission: size this market from the bottom up — countable buyers × plausible price — and judge the timing: what changed that makes this possible or urgent now, and what says it is early or late.

Research pass: read the web and any reports at this root; your only write is the report file. Every factual claim carries a source link and access date.

What it looks for

7 lenses it looks through

Phase 2 sweeps the codebase through every one of these, citing file and line for each finding.

1

Bottom-up count

buyers reachable in the wedge segment, then the expansion rings; every input sourced, every multiplication written out

2

Top-down sanity check

published market figures used only to bound the bottom-up, never to replace it; explain any large gap between the two

3

Growth reading

the countables over time: hiring trends, search-interest direction, community growth, funding flowing into the space

4

Why now

the enabling shifts, with dates: a capability that got cheap, a regulation that landed, a behavior that changed; what exactly was impossible or unnecessary three years ago

5

Why not before

prior attempts and precisely which constraint killed them; verify that constraint is actually gone rather than merely older

6

Window shape

is early advantage real here (compounding data, standards, land-grab) or is fast-follow the smarter seat

7

Concentration risk

a thousand small checks or five big ones; the platform dependencies that could reprice the whole market overnight

The deliverable

What lands in your repo

One structured report at the repo root — or in reports/, if you keep one — the same shape every time, ready for a teammate — or the optional Studio — to act on.

MARKET.md
1
The arithmetic
the bottom-up model, every input sourced
2
Growth and timing
the why-now case and its strongest rebuttal, side by side
3
The window
the mover-advantage verdict with reasoning
4
Sensitivity
the single assumption that, if wrong, most changes the answer
One file. Evidence-backed. It ends by asking before touching anything.
How it works

What it makes the agent do

Every Goal Prompt follows the same four steps, so results are consistent and repeatable — no matter which one you run.

1
Phase 1

Define the unit

Define the buyer unit precisely — a company of type X, a professional in role Y — and the annual-value hypothesis per…

2
Phase 2

Audit through 7 lenses

Bottom-up count — buyers reachable in the wedge segment, then the expansion rings.

3
Phase 3

Curate

State the obtainable market for years one and two as a range, assumptions explicit.

4
Phase 4

Report

Create MARKET.md at repo root.

Get started

Three ways to run this Goal Prompt

01 · COPY

Paste it in

Copy it and paste it into your agent inside the repo you want checked.

02 · INSTALL

As a slash command

Install the goal plugin once — two commands — then just type /goal:market-size-timing.

1/plugin marketplace add GhostlyGawd/goal-prompts
2/plugin install goal@goal-prompts

Or install only this Goal Prompt as /goal-market-size-timing:

curl -fsSL https://goal-prompts.vercel.app/install | BRIEF=64 sh
03 · AGENT

From an agent (MCP)

Let an agent fetch it mid-conversation, or pull the raw Goal Prompt by URL.

https://goal-prompts.vercel.app/raw/64.md
Transparency

The exact prompt

Nothing hidden — this is the whole Goal Prompt, verbatim. Read it in a minute, edit it, or copy it as-is.

Read the full brief (3,057 characters)
# Goal: Market Size & Timing

You are working inside this repo — the research workspace for this venture. Mission: size this market from the bottom up — countable buyers × plausible price — and judge the timing: what changed that makes this possible or urgent now, and what says it is early or late.

Research pass: read the web and any reports at this root; your only write is the report file. Every factual claim carries a source link and access date.

## Phase 1 — Define the unit
- Define the buyer unit precisely — a company of type X, a professional in role Y — and the annual-value hypothesis per unit.
- Gather countable proxies: directories, associations, job-title counts, marketplace install counts, industry statistics — sources someone could actually enumerate.

## Phase 2 — Audit through 7 lenses
1. **Bottom-up count** — buyers reachable in the wedge segment, then the expansion rings; every input sourced, every multiplication written out
2. **Top-down sanity check** — published market figures used only to bound the bottom-up, never to replace it; explain any large gap between the two
3. **Growth reading** — the countables over time: hiring trends, search-interest direction, community growth, funding flowing into the space
4. **Why now** — the enabling shifts, with dates: a capability that got cheap, a regulation that landed, a behavior that changed; what exactly was impossible or unnecessary three years ago
5. **Why not before** — prior attempts and precisely which constraint killed them; verify that constraint is actually gone rather than merely older
6. **Window shape** — is early advantage real here (compounding data, standards, land-grab) or is fast-follow the smarter seat
7. **Concentration risk** — a thousand small checks or five big ones; the platform dependencies that could reprice the whole market overnight

## Phase 3 — Curate
- State the obtainable market for years one and two as a range, assumptions explicit.
- Write the bear case with the same rigor as the bull; this report exists to be wrong early and cheaply.

## Phase 4 — Report
Create `MARKET.md` at repo root:
1. **The arithmetic** — the bottom-up model, every input sourced
2. **Growth and timing** — the why-now case and its strongest rebuttal, side by side
3. **The window** — the mover-advantage verdict with reasoning
4. **Sensitivity** — the single assumption that, if wrong, most changes the answer

Start the report with today's date. If `MARKET.md` already exists from a previous run, read it first and lead with what changed since.

## Rules
- Show every multiplication; a number without visible arithmetic is a vibe
- Bull and bear get equal effort
- No discernible product or idea to research in this repo? Say so in a one-paragraph null report and stop — a null result is a valid finding.
- If a `reports/` directory exists at the repo root, write the report there instead of the root.
- Before asking, present the top findings as a ranked list in plain words
- Report only — end by asking whether size and timing justify the next brief

House rules for this Goal Prompt

  • Show every multiplication; a number without visible arithmetic is a vibe
  • Bull and bear get equal effort
  • No discernible product or idea to research in this repo? Say so in a one-paragraph null report and stop — a null result is a valid finding.
  • If a reports/ directory exists at the repo root, write the report there instead of the root.
  • Before asking, present the top findings as a ranked list in plain words
  • Report only — end by asking whether size and timing justify the next brief
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