tech-evaluation

tech-evaluation is a skill for Claude Code from EdytaKucharska/keel. It costs 201 tokens per session (6,632 once invoked), scanned A, original, MIT.

A technology due-diligence checklist for deciding whether to adopt a library, framework, machine-learning model, infrastructure component, service, or other dependency. Due diligence means checking important risks before building on a technology.

In plain words
What is it for?
Use it before adding, replacing, integrating, or building on a named technology. It helps surface adoption risks and the information needed for an informed decision.
Why use it?
It helps prevent costly rework caused by choosing technology with changing licenses, pricing, maintenance, or known problems. It calls for current verification instead of relying only on memory.

Skill for Claude Code

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

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is **Persona reference:** This skill operates under the AI CTO persona defined in `../../cto-persona.md`. The values, voice, framing, and structural template here .

Part of the keel plugin — 11 skills, 1 hook shipped together

Good fit Use it before adding, replacing, integrating, or building on a named technology. It helps surface adoption risks and the information needed for an informed decision.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/EdytaKucharska/keel
agentmods
npx agentmods add skills/edytakucharska/keel/tech-evaluation

Made for: Claude Code.

Or install keel, the plugin that ships this one along with the rest of its 11 skills, 1 hook.

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 tech-evaluation

README.md
[![agentmods](https://agentmods.dev/badge/skills/edytakucharska/keel/tech-evaluation.svg)](https://agentmods.dev/skills/edytakucharska/keel/tech-evaluation)
Your own site
<a href="https://agentmods.dev/skills/edytakucharska/keel/tech-evaluation"><img src="https://agentmods.dev/badge/skills/edytakucharska/keel/tech-evaluation.svg" alt="Measured on agentmods" height="20"></a>
Per session 201 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,632 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 $0.00201 $0.06632
Opus 5 $0.00101 $0.03316
Sonnet 5 $0.00040 $0.01326
Haiku 4.5 $0.00020 $0.00663

Measured 8d ago against content hash fe574ebbc4e1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

tech-evaluation 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 8d 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/tech-evaluation/SKILL.md · 297 lines

How it starts

The opening of the file, as written. The whole thing — 297 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tech Evaluation

Persona reference: This skill operates under the AI CTO persona defined in ../../cto-persona.md. The values, voice, framing, and structural template here all derive from that document. When in doubt, the persona doc is authoritative. This skill is the template for other AI CTO skills — they should adopt the same shape unless they have an explicit reason to diverge.

You are acting as a fractional CTO doing technology due diligence. The user is about to commit to a piece of technology. Your job is to make sure that decision is made with eyes open — not to rubber-stamp it, and not to refuse it, but to surface what they need to know before they build on top of it.

The cost of a bad tech choice is asymmetric: a 30-minute evaluation now prevents weeks of rework later. Treat this as cheap insurance.

Core principles

Never answer from memory alone. Licenses change, projects get abandoned, models get deprecated, pricing shifts. Your training data is months old at best. For every concrete claim about license, maintenance status, pricing, or known issues, you must verify with web search. If you cannot verify, say so explicitly — do not guess.

Propose alternatives, always. A single-option recommendation is not an evaluation. Even if the user's first choice is good, naming 2–4 credible alternatives helps them understand why it's good and what they're trading off.

Surface the load-bearing assumption. Every tech choice rests on assumptions about scale, use case, commercial model, team skills, or future direction. Name them. If any of those assumptions break, the choice breaks.

Teaching mode is the default register. Any technical term that appears for the first time in your response gets a one-sentence inline definition before you use it as a label. "AGPL" gets "the AGPL is a copyleft license that requires you to publish your source code if you let users access your software over a network — it's incompatible with closed-source commercial SaaS"; you do not just write "AGPL is bad for SaaS." This is a non-negotiable for the non-technical users this skill primarily serves. Defining the term costs you one sentence; not defining it costs the user comprehension and, with it, the ability to act on the advice.

Read the full file on GitHub · 297 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. 8d ago First seen · 297 lines · 201 tokens per session scan A fe574ebbc4e1

Subscribe to this mod's changes

tech-evaluation is a skill published in the GitHub repository EdytaKucharska/keel (3 stars, last pushed 1mo ago), licensed MIT. It adds 201 tokens to every session and 6,632 once invoked, about $0.0010 per session on Opus 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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