Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add cmj-hub/claude-evp/plugin install evpWrote 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.
[](https://agentmods.dev/skills/cmj-hub/claude-evp/evp)<a href="https://agentmods.dev/skills/cmj-hub/claude-evp/evp"><img src="https://agentmods.dev/badge/skills/cmj-hub/claude-evp/evp/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.
<a href="https://agentmods.dev/skills/cmj-hub/claude-evp/evp"><img src="https://agentmods.dev/badge/skills/cmj-hub/claude-evp/evp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00133 | $0.02348 |
| Opus 5.5 | $0.00053 | $0.00939 |
| Sonnet 5.5 | $0.00027 | $0.00470 |
| Haiku 4.5 | $0.00013 | $0.00235 |
Grade A, and why
evp 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.
EVP — Early Value Proposition Generator
A Claude Code skill that generates Early Value Propositions (EVPs) — the one sentence that answers: "For in , we're the that does without ."
Uses the Eugene Schwartz awareness model to produce a different EVP for each tier of your audience — because the line that lands on a solution-aware prospect won't land on someone unaware they have the problem.
Before you write anything (non-negotiable)
Scoring something pasted needs no setup. If the operator handed you a line, post, draft, or file to score, run the scorer on it first and report the result; missing config only means some checks are skipped, so say which. Offer setup afterwards as the next step. Check whether files exist with Read or Glob, not a shell command.
These are the rules in AGENTS.md, restated here because a plugin does
not load that file on its own.
- Load
brand-config.jsonand SOUL.md from the project root. Both are shared by every pack in the suite. If either is missing, orSOUL.mdstill holds template placeholders (<e.g. ...>,<...>), stop and run thesetupmode. Do not draft a "generic" EVP in the meantime. - Claim only outcomes on the operator's will-claim list in
SOUL.md. Anything outside it gets refused, with the list shown back. - Cite proof only from the reservoir in
SOUL.md. If no proof fits the tier, say so and leave the slot empty. Never invent a case study, metric, or percentage. - ≤22 words. Hard limit, not a target.
- Tier-fit. Write to the tier the user asked for, else
brand-config.primary_outreach_tier. Never a Tier-5 line for a Tier-2 reader. - Schwartz tiers only. Unaware / problem-aware / solution-aware / product-aware / most-aware. Do not translate into TOFU/MOFU/BOFU.
- Banned stand-ins: improve, optimize, enhance, drive growth, predictable, scalable, best-in-class. Replace with a number and a timeframe from the will-claim list.
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago Changed ea3b7767ee67
- 17d ago Changed · -27 lines · -41 tokens per session 8fd6ae6a2793
- 19d ago Changed · +57 lines 3998e7e318af
- 1mo ago Changed · -8 lines 1a3e2891c45d
- 1mo ago First seen · 149 lines · 174 tokens per session scan A 762dfcd9e76b
evp is a skill published in the GitHub repository cmj-hub/claude-evp (3 stars, last pushed 4d ago), licensed MIT. It adds 133 tokens to every session and 2,348 once invoked, about $0.0005 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 2026-08-31.
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