Audit Defensive Investor Screen Agent Skill

Use when applying Graham's specific quantitative criteria for defensive (conservative) stock selection — checking a candidate against…

Context cost
2.3k tokensestimated from the bundle, loaded when it triggers
Bundle
1 file · 9.0 kBtext throughout, nothing executable
Licence
MITthe author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

Use when applying Graham's specific quantitative criteria for defensive (conservative) stock selection — checking a candidate against numeric thresholds for valuation, debt, earnings stability, and dividend history rather than a qualitative-only assessment.

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

defensive-investorfinancegrahaminvestingquantitative-screeningvalue-investing

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md9.0 kB · preview
--- name: audit-defensive-investor-screen source: Benjamin Graham, "The Intelligent Investor" (1949; 1973 revised edition) — Chapter 14, defensive investor selection criteria tags: [finance, investing, defensive-investor, quantitative-screening, value-investing, graham] related: [apply-investor-type-classification, calculate-margin-of-safety, audit-balance-sheet-debt-risk] ---
9# Audit Defensive Investor Screen
10
11Check a candidate stock against Graham's specific numeric thresholds for size, financial strength, earnings stability, dividend history, and valuation — a mechanical, conservative screening tool for an investor prioritizing safety and simplicity over active analysis.
12
13## Why This Is Best Practice
14
15**Adopted by:** Benjamin Graham detailed this specific quantitative checklist in Chapter 14 of "The Intelligent Investor" (1949; 1973 revised edition) as the selection criteria for what he termed the "defensive investor" — someone prioritizing safety of principal and freedom from the need for ongoing active management over the higher but less certain returns an enterprising investor might pursue through deeper individual analysis. The checklist remains widely taught in value-investing curricula as the original, most explicit quantitative value-screening framework.
16**Impact:** Graham designed these specific thresholds to mechanically exclude companies with weak financial condition, unstable earnings, no dividend track record, or excessive valuation — the combination of factors he identified as most associated with capital loss for conservative investors in the market conditions he studied across multiple market cycles. A mechanical screen removes the need for the defensive investor to make subjective judgment calls that Graham felt were better suited to the enterprising investor's deeper analytical process.
17**Why best:** A purely qualitative assessment ("this seems like a solid company") is vulnerable to the same behavioral biases (optimism, story-driven reasoning, social proof) that undermine investment discipline generally. A specific, numeric checklist forces an explicit, falsifiable test that isn't easily rationalized around — a company either meets the debt, earnings-stability, and valuation thresholds or it doesn't, removing much of the subjective judgment a purely narrative-based selection process would otherwise require.
18
19Sources: Graham, "The Intelligent Investor" (1949; 1973 revised edition), Chapter 14
20
21## Steps
22
23### Step 1: Check adequate size
24
25Confirm the company is of suffficient scale to reduce the volatility and uncertainty associated with smaller, less-established enterprises — Graham's original thresholds (specific revenue or asset figures) were calibrated to his era's market and should be interpreted as "meaningfully established, not a speculative micro-cap," adjusted for current market scale rather than applied as a literal, unadjusted historical dollar figure.
26
27### Step 2: Check strong financial condition
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md1,240 words
Files1
LicenceMIT
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈160
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
2,090
on trigger
The instruction body, read only when the skill fires.
1.1%
of a 200k window
Ten skills this size would take about 11% of the window before you open a file.
050k100k150k200k context window

2.3k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Middling. Fine to keep on in a project where you use it weekly, worth unloading in one where you never do.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

1 file, 9.0 kB on disk. A bundle is text throughout: the instructions the model reads, plus the templates it fills in.

  • SKILL.md9.0 kB
What is not in it

No dependencies and nothing executable: a skill is text the agent reads, so the bundle is 1 file you can review in full before installing. The MIT licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Audit Defensive Investor Screen · 2.3k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/audit-defensive-investor-screen/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/audit-defensive-investor-screen" ] && { [ ! -e .claude/skills/audit-defensive-investor-screen ] || { mv .claude/skills/audit-defensive-investor-screen "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/audit-defensive-investor-screen" .claude/skills/ && echo "Installed .claude/skills/audit-defensive-investor-screen"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add jeffreytse/audit-defensive-investor-screen

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/audit-defensive-investor-screen/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/audit-defensive-investor-screen/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/audit-defensive-investor-screen" ] && { [ ! -e ~/.claude/skills/audit-defensive-investor-screen ] || { mv ~/.claude/skills/audit-defensive-investor-screen "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/audit-defensive-investor-screen" ~/.claude/skills/ && echo "Installed ~/.claude/skills/audit-defensive-investor-screen" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/audit-defensive-investor-screen/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referencejeffreytse/audit-defensive-investor-screen

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

Reviews

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Who wrote it

JE
jeffreytse

Publishes on mcprush.

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