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buffett

Activates Warren Buffett's complete investment thinking system. The following scenarios must trigger it: analyzing any stock or company, evaluating investment opportunities, interpreting financial reports/annual reports/shareholder letters, assessing business moats or competitive advantages, evaluating management quality and integrity, making buy/hold/sell decisions, understanding core value investing concepts (compounding/intrinsic value/margin of safety/circle of competence/Mr. Market), analyzing any industry (insurance/banking/consumer/media/energy/railroads/technology), handling capital allocation/buybacks/dividends questions, assessing market sentiment and macro risks, exploring when to sell, analyzing institutional imperative or management behavior. Even if the user does not mention "Buffett," proactively trigger whenever the topic involves investment analysis, business quality assessment, or investment decision-making.

71

Quality

87%

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SecuritybySnyk

Passed

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SKILL.md
Quality
Evals
Security

Quality

Content

78%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-architected analytical skill with tight, table-driven guidance, concrete thresholds and formulas, clear task-typed workflows with judgment checkpoints, and excellent progressive disclosure across 8 reference files. Main room for improvement is trimming minor redundancy and adding a worked example.

Suggestions

Consolidate the overlapping material between the Quick Filter table and the Deep Analysis Framework (e.g., moat, management integrity, sell criteria appear twice) to reduce redundancy and token cost.

Add one short worked numerical example (e.g., a sample owner-earnings and margin-of-safety calculation) so the formulas and tiers are immediately concretized.

Make the reading-path decision tree even more deterministic by collapsing the 'C · Specific Topics' table duplicates that re-list files already covered in Path B.

DimensionReasoningScore

Conciseness

Dense, table-driven, and assumes Claude's competence without explaining value-investing basics, but the reference-reading protocol and some overlap between the Quick Filter and Deep Analysis sections could be tightened. Not a 5 due to these minor redundancies.

4 / 5

Actionability

Provides concrete executable guidance—owner earnings formula, ROIC >15% target, cash conversion >90%, margin-of-safety discount tiers, four explicit sell criteria, and a required output template—but lacks a worked numeric example, leaving a minor gap.

4 / 5

Workflow Clarity

Clear sequenced paths (A/B/C), an ordered reading list, 'do first—cannot skip' markers, an automatic-veto integrity checkpoint, and an item-by-item sell-criteria checklist; checkpoints are judgment-gates rather than executable validation, which is appropriate here but keeps it just below a 5.

4 / 5

Progressive Disclosure

SKILL.md is a well-structured overview pointing to 8 verified one-level-deep reference files, with a task-type→file reading protocol and a Reference File Index that makes navigation easy; the 'read on demand' principle is clearly signaled.

5 / 5

Total

17

/

20

Passed

Description

96%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A strong, third-person description that crisply states what the skill does and exhaustively enumerates natural trigger scenarios with proactive fallback guidance. Only minor risk of over-triggering on broad investment-analysis topics.

DimensionReasoningScore

Specificity

Lists multiple concrete actions—'analyzing any stock,' 'interpreting financial reports/annual reports/shareholder letters,' 'evaluating management quality and integrity,' 'making buy/hold/sell decisions,' 'handling capital allocation/buybacks/dividends'—with comprehensive coverage of the skill's scope.

5 / 5

Completeness

Explicitly answers what ('Activates Warren Buffett's complete investment thinking system') and when ('The following scenarios must trigger it... Even if the user does not mention "Buffett," proactively trigger whenever...') with concrete trigger phrases.

5 / 5

Trigger Term Quality

Comprehensive natural trigger terms including synonyms and domain vocabulary—'stock,' 'shareholder letters,' 'buybacks,' 'dividends,' 'intrinsic value,' 'margin of safety,' 'circle of competence,' 'Mr. Market,' plus named industries (insurance, banking, consumer, media, energy, railroads, technology).

5 / 5

Distinctiveness Conflict Risk

Clear niche tied to Buffett/value investing with a named persona and distinctive triggers, but the very broad proactive clause on generic 'investment analysis' creates minor overlap risk with adjacent finance skills; not a 5 because of that breadth.

4 / 5

Total

19

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
digoal/blog
Reviewed

Table of Contents

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