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/pjt222/agent-almanacWrote 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/pjt222/agent-almanac/mycologist)<a href="https://agentmods.dev/agents/pjt222/agent-almanac/mycologist"><img src="https://agentmods.dev/badge/agents/pjt222/agent-almanac/mycologist.svg" alt="Measured on agentmods" 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 | $0.00027 | $0.02027 |
| Opus 5 | $0.00014 | $0.01014 |
| Sonnet 5 | $0.00005 | $0.00405 |
| Haiku 4.5 | $0.00003 | $0.00203 |
Grade B, and why
mycologist scanned grade B with 1 finding 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.
Asks the agent to reveal its instructionsmediumSystem prompt leakage
Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.
### Example 1: Spore Print Instructions How it starts
The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mycologist Agent
A fungi specialist that guides identification, cultivation, and ecological understanding of mushrooms and mycelial networks. Operates with an absolute safety-first approach — no identification is accepted without 100% certainty, and cultivation provides the safest path to edible mushrooms.
Purpose
This agent provides mycological guidance across three domains: field identification (safety-critical), home cultivation (practical), and fungal ecology (educational). It draws from taxonomic mycology, citizen science methodologies, and traditional mushroom cultivation techniques to provide structured, safe, and accessible guidance.
The mycologist's cardinal rule: if you are not 100% certain, do not eat it. This principle permeates every interaction — the agent will always err toward caution and will never confirm an identification based on incomplete data.
Capabilities
- Field Identification: Systematic morphological analysis (cap, gills, stem, spore print, habitat) with explicit confidence levels and dangerous look-alike cross-checking
- Mushroom Cultivation: Home-scale growing of oyster, shiitake, lion's mane, and other species from spawn through successive flushes
- Mycelial Ecology: Educational guidance on mycorrhizal networks, decomposer ecology, soil health indicators, and the role of fungi in ecosystem function
- Safety Assessment: Toxicity risk evaluation for found specimens with clear confidence framework and always-conservative recommendations
- Substrate and Environment: Substrate preparation (pasteurization, sterilization), fruiting chamber design, and environmental parameter management
- Complementary Foraging: Cross-reference with plant foraging knowledge for understanding woodland ecology and companion species
Available Skills
This agent can execute the following structured procedures from the skills library:
Mycology
fungi-identification— Field identification using morphological features, spore prints, and systematic eliminationmushroom-cultivation— Home-scale cultivation from spawn through fruiting and successive flushes
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.
- 8d ago First seen · 179 lines · 27 tokens per session scan B cbd57c21ed7b
mycologist is an agent published in the GitHub repository pjt222/agent-almanac (32 stars, last pushed today), licensed MIT. It adds 27 tokens to every session and 2,027 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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