market-sizing SKILL.md skillA
market-sizing from lool-ventures/founder-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lool-ventures/founder-skills/market-sizing@git:20261104.b480555Pins git:20261104.b480555 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lool-ventures/founder-skills
- Path
founder-skills/skills/market-sizing/SKILL.md- Versions recorded
- 34
- Latest version
- git:20261104.b480555, committed Nov 4, 2026
- First version recorded
- Aug 15, 2026
- Size
- 107,624 bytes
- Repository stars
- 52
- License
- Apache-2.0
Builds credible TAM/SAM/SOM analysis with external validation and sensitivity testing for startup fundraising: top-down, bottom-up, or both. Use when the user asks to size a market or check market claims and gives something to size: a product or service description, a market segment, or a deck with TAM/SAM/SOM claims. A full run takes about 15–20 minutes and searches the web, 30 or more with a large data room or a revision round, so for a passing question about market size, answer briefly in…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Market Sizing Skill
Help startup founders build credible, defensible TAM/SAM/SOM analysis — the kind that earns investor trust rather than raising eyebrows. Produce a structured, validated market sizing with external sources, sensitivity testing, and a self-check against common pitfalls. The tone is founder-first: a rigorous but supportive coaching session.
## Skill Execution Model (READ FIRST)
> See `founder-skills/references/skill-execution-model.md` for the full inline-skill execution model (3 dispatch contexts, Mitigation 1+2, producer contract, Cowork quirks, per-symptom triage).
This skill runs **inline in the main thread**, not as a sub-agent — see the reference above ("Why Inline (Not Forked Sub-Agent)") for the rationale. Sub-agents are deliberately shell-free, so orchestration (producer scripts, artifact persistence, web research) stays in the main thread.
**Two dispatch contexts for the sub-agent:**
…Read the whole file at its exact version.
How to install
mdr add lool-ventures/founder-skills/market-sizing@sha256:873564e8827840b6The line at the top of this page pins the label git:20261104.b480555, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ss7we4nwelsi44ak)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 34 versions of this file, between Aug 15, 2026 and Nov 4, 2026, about one every 2 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261104.b480555 latest | 2026-11-04 | b480555 | 107,624 B | A | view · diff |
| git:20261024.ad5a9b4 | 2026-10-24 | ad5a9b4 | 107,635 B | A | view · diff |
| git:20261018.d891f0d | 2026-10-18 | d891f0d | 107,401 B | A | view · diff |
| git:20261016.6b09195 | 2026-10-16 | 6b09195 | 107,326 B | A | view · diff |
| git:20261014.9f27a7c | 2026-10-14 | 9f27a7c | 107,216 B | A | view · diff |
| git:20261014.a87606c | 2026-10-14 | a87606c | 107,281 B | A | view · diff |
| git:20261011.28ba17a | 2026-10-11 | 28ba17a | 107,162 B | A | view · diff |
| git:20261011.3a837dd | 2026-10-11 | 3a837dd | 106,739 B | A | view · diff |
| git:20261011.0acbbb6 | 2026-10-11 | 0acbbb6 | 106,737 B | A | view · diff |
| git:20261011.4625718 | 2026-10-11 | 4625718 | 106,450 B | A | view · diff |
| git:20261010.ee9d075 | 2026-10-10 | ee9d075 | 106,452 B | A | view · diff |
| git:20261008.e6ebf79 | 2026-10-08 | e6ebf79 | 106,247 B | A | view · diff |
| git:20261008.d13ef5a | 2026-10-08 | d13ef5a | 106,251 B | A | view · diff |
| git:20261008.68be632 | 2026-10-08 | 68be632 | 106,255 B | A | view · diff |
| git:20261008.3c1887b | 2026-10-08 | 3c1887b | 106,256 B | A | view · diff |
| git:20261007.0a57a88 | 2026-10-07 | 0a57a88 | 106,282 B | A | view · diff |
| git:20261005.5c8df1d | 2026-10-05 | 5c8df1d | 107,276 B | B | view · diff |
| git:20261005.5520530 | 2026-10-05 | 5520530 | 106,491 B | B | view · diff |
| git:20261005.3e7d772 | 2026-10-05 | 3e7d772 | 106,463 B | B | view · diff |
| git:20261005.a337a00 | 2026-10-05 | a337a00 | 106,386 B | B | view · diff |
| git:20261005.655ed1e | 2026-10-05 | 655ed1e | 106,132 B | B | view · diff |
| git:20261003.2dc0702 | 2026-10-03 | 2dc0702 | 104,572 B | B | view · diff |
| git:20261003.489015f | 2026-10-03 | 489015f | 104,509 B | B | view · diff |
| git:20261003.4ce415f | 2026-10-03 | 4ce415f | 104,745 B | B | view · diff |
| git:20261003.65a8be7 | 2026-10-03 | 65a8be7 | 104,557 B | B | view · diff |
| git:20261003.d06ebcd | 2026-10-03 | d06ebcd | 103,493 B | B | view · diff |
| git:20260930.62ac052 | 2026-09-30 | 62ac052 | 102,926 B | B | view · diff |
| git:20260924.4ea7f25 | 2026-09-24 | 4ea7f25 | 105,300 B | B | view · diff |
| git:20260924.9d3a35e | 2026-09-24 | 9d3a35e | 105,149 B | B | view · diff |
| git:20260831.cdfba3b | 2026-08-31 | cdfba3b | 93,719 B | B | view · diff |
| git:20260825.5d9ab34 | 2026-08-25 | 5d9ab34 | 92,822 B | B | view · diff |
| git:20260818.c5d3e1a | 2026-08-18 | c5d3e1a | 92,173 B | B | view · diff |
| git:20260816.8655797 | 2026-08-16 | 8655797 | 92,125 B | B | view · diff |
| git:20260815.37d6fb2 | 2026-08-15 | 37d6fb2 | 90,547 B | B | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (107624 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
lool-ventures/founder-skills · 52 stars · license Apache-2.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ss7we4nwelsi44ak GET https://markdownregistry.com/api/v1/resolve?ref=lool-ventures/founder-skills/market-sizing GET https://markdownregistry.com/api/v1/blob/873564e8827840b676e072fb70ff5c47eaf3db8d5550455597fa800f8eb8d0b6
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from lool-ventures/founder-skills
Every file in lool-ventures/founder-skills