porters-five-forces SKILL.md skillA
porters-five-forces from deanpeters/product-manager-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add deanpeters/product-manager-skills/porters-five-forces@git:20260717.eb7a51ePins git:20260717.eb7a51e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- deanpeters/product-manager-skills
- Path
skills/porters-five-forces/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260717.eb7a51e, committed Jul 17, 2026
- First version recorded
- Jul 17, 2026
- Size
- 10,800 bytes
- Repository stars
- 7,599
- License
- a license file GitHub does not identify
Read an industry's structure through Porter's Five Forces with documented signals per rating, ending at the profit pool. Use when weighing market entry or when margins erode and nobody can say why.
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
# Porter's Five Forces (Evidence-Cited)
## Purpose
Read an industry's structure through Porter's Five Forces, with evidence: **search plan →
force-by-force ratings with signals → profit-pool implication → next-step options.** Each force —
competitive rivalry, threat of new entrants, threat of substitutes, buyer power, supplier power — is
rated weak/moderate/strong and justified with documented signals, because a rating without signals is
vibes. The analysis closes where it should have been aiming all along: **where the profit pool sits
and who is squeezing it.** Five forces is an argument about where margin goes, not a diagram for
slide four.
## Input
**Works best with:** the industry or segment, named as precisely as you can ("clinical data
management SaaS," not "healthcare"), and **the decision this analysis should support**.
**Also useful:** a geographic boundary if the structure differs by region, and a
[`market-landscape-scan`](../market-landscape-scan/SKILL.md) in session — the forces read builds on
it and searches only gaps.
Input supplied inline with the invocation — text after the skill name, a pasted context dump, or an
…Read the whole file at its exact version.
How to install
mdr add deanpeters/product-manager-skills/porters-five-forces@sha256:eb24ecb628f42993The line at the top of this page pins the label git:20260717.eb7a51e, 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_ey5qwg45agjpmbwb)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Jul 17, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260717.eb7a51e latest | 2026-07-17 | eb7a51e | 10,800 B | A | view · diff |
| git:20260717.0ad6f9c | 2026-07-17 | 0ad6f9c | 10,288 B | A | 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 (10800 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
deanpeters/product-manager-skills · 7,599 stars · license a license file GitHub does not identify · pushed 2026-10-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ey5qwg45agjpmbwb GET https://markdownregistry.com/api/v1/resolve?ref=deanpeters/product-manager-skills/porters-five-forces GET https://markdownregistry.com/api/v1/blob/eb24ecb628f42993bde6d0d19b6f6df4a76de11f54bc67e86952d6244715d725
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.
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