apply-bcg-matrix

apply-bcg-matrix is a skill for Claude Code from jeffreytse/grimoire-core. It costs 54 tokens per session (1,777 once invoked), scanned A, original, MIT.

A portfolio-planning framework that sorts products, business units, or initiatives by market growth and relative market share. Its four groups guide decisions to invest, maintain, take cash from, or stop funding each item.

In plain words
What is it for?
Use it to review a product portfolio, business-unit portfolio, or set of initiatives and set different funding priorities.
Why use it?
It provides a common way to compare very different parts of a portfolio instead of giving every item the same resources.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the grimoire-business plugin — 156 skills shipped together

Good fit Use it to review a product portfolio, business-unit portfolio, or set of initiatives and set different funding priorities.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jeffreytse/grimoire-core/apply-bcg-matrix
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 jeffreytse/grimoire-core --skill apply-bcg-matrix
Clone the repo
git clone --depth 1 https://github.com/jeffreytse/grimoire-core

Made for: Claude Code.

Or install grimoire-business, the plugin that ships this one along with the rest of its 156 skills.

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.

agentmods badge for apply-bcg-matrix

README.md
[![agentmods](https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/apply-bcg-matrix/github.svg)](https://agentmods.dev/skills/jeffreytse/grimoire-core/apply-bcg-matrix)
Your own site
<a href="https://agentmods.dev/skills/jeffreytse/grimoire-core/apply-bcg-matrix"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/apply-bcg-matrix/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.

agentmods 80×15 button for apply-bcg-matrix

Your own site · 80×15
<a href="https://agentmods.dev/skills/jeffreytse/grimoire-core/apply-bcg-matrix"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/apply-bcg-matrix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,777 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00054 $0.01777
Opus 5.5 $0.00022 $0.00711
Sonnet 5.5 $0.00011 $0.00355
Haiku 4.5 $0.00005 $0.00178

Measured 1mo ago against content hash f3200a535ff1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

apply-bcg-matrix 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 1mo 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.

skills/business/strategy/skills/apply-bcg-matrix/SKILL.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Apply BCG Matrix

Classify each product, business unit, or initiative in a portfolio by its market growth rate and its relative market share, then direct cash and investment according to the quadrant — rather than funding every unit at a similar level regardless of its actual economics.

Why This Is Best Practice

Origin: Bruce Henderson and the Boston Consulting Group developed the growth-share matrix in the early 1970s to give diversified corporations a way to allocate capital across business units based on two observable variables — the growth rate of the unit's market and the unit's market share relative to its largest competitor — rather than allocating capital based on each unit's own requested budget or historical share of corporate spend.

Adopted by: The BCG matrix became a standard tool at diversified conglomerates managing large, multi-business portfolios through the 1970s–1990s (General Electric's business-screen matrix is a direct descendant) and remains standard content in corporate-strategy and portfolio-management curricula. It is still used informally whenever a company maps a product portfolio, business-unit set, or investment lineup against growth and share to decide where to concentrate capital.

Impact: The matrix's central empirical insight — drawn from the experience-curve research BCG conducted in parallel — is that units with high relative market share in their category generate disproportionately more cash than their revenue share alone suggests (due to cumulative-volume cost advantages), while low-share units in the same market structurally struggle to reach profitability regardless of effort. Portfolios managed without this distinction routinely over-invest in unprofitable, low-share "dogs" out of sunk-cost attachment while under-funding high-potential "stars" that need capital to defend their position during the high-growth phase.

Why best: The alternative — funding every business unit at a similar percentage of its own revenue, or by internal political weight — ignores that units in different quadrants have fundamentally different cash dynamics: cash cows generate surplus cash beyond what they need to defend their position; stars consume cash to defend a growing position; question marks consume cash with uncertain payoff; dogs consume cash with little prospect of ever generating a return. Classifying first makes the capital-allocation decision follow the unit's actual economic role in the portfolio rather than its historical claim on the budget.

Read the full file on GitHub · 73 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. 1mo ago First seen · 73 lines · 54 tokens per session scan A f3200a535ff1

Subscribe to this mod's changes

apply-bcg-matrix is a skill published in the GitHub repository jeffreytse/grimoire-core (5 stars, last pushed 5d ago), licensed MIT. It adds 54 tokens to every session and 1,777 once invoked, about $0.0002 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 2026-09-03.