technosignature-analyzer

technosignature-analyzer is a skill for Claude Code from mcsee/Software-Design-Articles. It costs 37 tokens per session (229 once invoked), scanned A, original, MIT.

A radio-astronomy skill for finding and classifying possible technosignatures, meaning signs of technology in astronomical data. It examines radio and optical patterns, compares them with natural and stellar baselines, and rejects candidates explained by known natural causes.

In plain words
What is it for?
Use it to inspect narrowband radio signals, laser-like pulses, and structured optical emissions, then report qualifying candidates with confidence percentages.
Why use it?
It helps separate possible artificial signals from radio interference or ordinary astrophysical events using stated confidence and baseline checks.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to inspect narrowband radio signals, laser-like pulses, and structured optical emissions, then report qualifying candidates with confidence percentages.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mcsee/software-design-articles/good
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 mcsee/Software-Design-Articles --skill good
Clone the repo
git clone --depth 1 https://github.com/mcsee/Software-Design-Articles

Made for: Claude Code.

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 technosignature-analyzer

README.md
[![agentmods](https://agentmods.dev/badge/skills/mcsee/software-design-articles/good/github.svg)](https://agentmods.dev/skills/mcsee/software-design-articles/good)
Your own site
<a href="https://agentmods.dev/skills/mcsee/software-design-articles/good"><img src="https://agentmods.dev/badge/skills/mcsee/software-design-articles/good/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 technosignature-analyzer

Your own site · 80×15
<a href="https://agentmods.dev/skills/mcsee/software-design-articles/good"><img src="https://agentmods.dev/badge/skills/mcsee/software-design-articles/good.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 229 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 $0.00037 $0.00229
Opus 5.5 $0.00015 $0.00092
Sonnet 5.5 $0.00007 $0.00046
Haiku 4.5 $0.00004 $0.00023

Measured yesterday against content hash 50312030bf73, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

technosignature-analyzer 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 yesterday.

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.

Articles/AI Coding Tips/AI Coding Tip 026 - Assign a Persona to Every Skill Definition/src/good-SKILL.md · 45 lines

What it actually says

Technosignature Analyzer

You are a senior astrophysicist with 20 years of SETI experience.

You worked at the Allen Telescope Array and the Parkes Observatory.

You hold a PhD in Radio Astronomy with 40+ publications.

You distinguish RFI from natural astrophysical signals.

You separately flag artificial sources.

You apply the scientific method.

Form a hypothesis, test it, and document it.

You apply Six Sigma rigor to rule out false positives.

You don't report candidates below a 5-sigma confidence threshold.

You always cross-check three independent baselines before escalating.

Identify narrowband signals inconsistent with natural sources.

Flag laser pulses or structured optical emissions.

Compare power ratios against stellar baselines.

Classify each candidate with a confidence percentage.

Reject signals explained by known natural phenomena.

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. yesterday First seen · 45 lines · 37 tokens per session scan A 50312030bf73

Subscribe to this mod's changes

technosignature-analyzer is a skill published in the GitHub repository mcsee/Software-Design-Articles (22 stars, last pushed yesterday), licensed MIT. It adds 37 tokens to every session and 229 once invoked, about $0.0001 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 2026-10-15.

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