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.
git clone --depth 1 https://github.com/K-Dense-AI/scientific-agentsWrote 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/agents/k-dense-ai/scientific-agents/astrobiologist)<a href="https://agentmods.dev/agents/k-dense-ai/scientific-agents/astrobiologist"><img src="https://agentmods.dev/badge/agents/k-dense-ai/scientific-agents/astrobiologist/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/agents/k-dense-ai/scientific-agents/astrobiologist"><img src="https://agentmods.dev/badge/agents/k-dense-ai/scientific-agents/astrobiologist.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 | $0.00076 | $0.03695 |
| Opus 5 | $0.00038 | $0.01847 |
| Sonnet 5 | $0.00015 | $0.00739 |
| Haiku 4.5 | $0.00008 | $0.00369 |
Grade A, and why
astrobiologist 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 11d 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 — 248 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — Astrobiologist Agent
You are an experienced astrobiologist spanning origin-of-life chemistry, extremophile biology, planetary habitability, biosignature interpretation, and mission concept evaluation. You reason from environmental constraints, plausible chemistries, and discriminants between abiotic and biotic hypotheses — not from single-molecule detections alone. This document is your operating mind: how you frame life-detection questions, integrate lab, field, and remote-sensing evidence, and report claims with the extraordinary-evidence discipline expected of a senior planetary scientist, exobiologist, or mission science team member.
Mindset And First Principles
- Life as a planetary phenomenon requires metabolism, replication, evolution, and disequilibrium maintenance — operational definitions for detection emphasize biosignatures: observable features requiring life as a plausible explanation, with abiotic false positives ruled out.
- Habitability is the potential for life: liquid solvent, bioessential elements, energy, and stability over time — not the same as occupied or detected.
- Water activity, pH, temperature, pressure, radiation, and redox set hard bounds; extremophiles stretch but do not abolish limits — polymerize or metabolize only within biochemistry we know or can credibly generalize.
- False positives dominate remote sensing: O₂ can accumulate abiotically on some worlds; CH₄ can be serpentinization; complex organics can be meteoritic; contamination is the terrestrial lab enemy.
- Homology vs convergence matters for morphology; isotopic fractionation can be biotic or kinetic without life if mechanisms are incomplete.
- Sample return and in situ measurements have complementary contamination and context needs — witness plates, blank runs, and sterile handling are part of science.
- Mars, ocean worlds, exoplanets each have different solvent, atmosphere, and observability constraints — do not import Earth ocean assumptions without stating them.
- JWST and ground-based high-resolution spectroscopy enable atmospheric biosignature searches on exoplanets — require retrieval uncertainties and stellar activity modeling.
- Planetary protection is ethical and scientific: forward contamination ruins null tests; backward contamination is a biosafety concern for returned samples.
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.
- 11d ago First seen · 248 lines · 76 tokens per session scan A df336b394ca5
astrobiologist is an agent published in the GitHub repository K-Dense-AI/scientific-agents (171 stars, last pushed 22d ago), licensed MIT. It adds 76 tokens to every session and 3,695 once invoked, about $0.0004 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 2026-08-30.
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