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Identifies unknown fungi using morphology, spore prints, habitat analysis, and seasonal context with a safety-first approach. Useful for foraging, garden safety, and look-alike differentiation.
How this skill is triggered — by the user, by Claude, or both
Slash command
/agent-almanac:fungi-identificationThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
Identify fungi in the field using morphological features, spore prints, habitat, and season with an absolute safety-first approach.
Identify fungi in the field using morphological features, spore prints, habitat, and season with an absolute safety-first approach.
Before any identification work, internalize the absolute rule of mycology.
CARDINAL RULE:
If you are not 100% certain of the identification, DO NOT EAT IT.
There is no "universal edibility test" for mushrooms.
Some deadly species taste pleasant.
Some deadly species have delayed symptoms (24-72 hours).
Some deadly species have NO antidote.
The cost of a false positive (eating a misidentified mushroom) is
organ failure and death. The cost of a false negative (skipping an
edible mushroom) is a missed meal.
ALWAYS ERR TOWARD CAUTION.
Expected: The cardinal rule is internalized before proceeding with identification.
On failure: There is no failure mode for this step. If the rule is not internalized, do not proceed to field identification for consumption purposes.
Context narrows identification before touching the specimen.
Habitat Recording:
+--------------------+------------------------------------------+
| Factor | Record |
+--------------------+------------------------------------------+
| Substrate | Soil, wood (dead/living), dung, leaf |
| | litter, moss, other fungi |
+--------------------+------------------------------------------+
| Tree association | What trees are within 10m? (Many fungi |
| | are mycorrhizal with specific tree genera)|
+--------------------+------------------------------------------+
| Moisture | Dry, damp, wet, waterlogged |
+--------------------+------------------------------------------+
| Light | Full shade, dappled, open |
+--------------------+------------------------------------------+
| Season | Early spring, late spring, summer, early |
| | autumn, late autumn, winter |
+--------------------+------------------------------------------+
| Altitude | Lowland, mid-altitude, montane |
+--------------------+------------------------------------------+
| Growth pattern | Solitary, scattered, clustered, ring, |
| | shelf/bracket |
+--------------------+------------------------------------------+
Expected: A complete habitat record that provides context for species-level identification.
On failure: If habitat is unclear (e.g., urban garden with mixed plantings), record what is visible. Incomplete habitat data reduces identification confidence — factor this into the safety assessment.
Systematic examination of the specimen itself.
Morphological Checklist:
CAP (Pileus):
- Shape: convex, flat, concave, conical, umbonate, bell-shaped
- Diameter (measure or estimate)
- Surface: smooth, scaly, fibrous, slimy, dry, cracked
- Colour (note if colour changes with age or moisture)
- Margin: smooth, striate, inrolled, appendiculate (veil remnants)
GILLS / PORES / SPINES (Hymenium):
- Type: gills (lamellae), pores (tubes), spines (teeth), smooth
- Attachment: free, adnexed, adnate, decurrent
- Spacing: crowded, close, distant
- Colour (important — note changes with age)
- Bruising: do gills change colour when damaged?
STEM (Stipe):
- Height and diameter
- Shape: equal, tapered, bulbous, club-shaped
- Surface: smooth, fibrous, scaly, reticulate (netted)
- Interior: solid, hollow, stuffed (pithy center)
- Ring (annulus): present/absent, position, persistent/fragile
- Volva (cup at base): present/absent — ALWAYS check by
carefully excavating the base (Amanita species have a volva)
FLESH (Context):
- Colour when cut
- Colour change on exposure to air (note time to change)
- Texture: firm, brittle, fibrous, gelatinous
- Smell: mushroomy, anise, radish, flour, chlorine, unpleasant
- Taste: (ONLY if species is confirmed non-deadly by an expert;
for unknown species, DO NOT taste)
SPORE PRINT:
- Remove the stem; place the cap gill-side down on paper
(half white, half dark paper to see any colour)
- Cover with a glass or bowl to maintain humidity
- Wait 4-12 hours
- Record spore colour: white, cream, pink, brown, purple-brown,
black, rust-orange
Expected: A complete morphological description covering all major features.
On failure: If a feature cannot be observed (e.g., no ring visible but it may have been lost), record it as "not observed" rather than "absent." The distinction matters for identification.
Cross-reference all data against reference material.
Identification Protocol:
1. Use habitat + season to narrow to likely genera
2. Use cap shape + gill type + spore colour to narrow to species group
3. Check ALL features against the candidate species description
4. Specifically check against dangerous look-alikes:
- Does this species have a deadly doppelganger?
- What feature distinguishes the edible from the deadly?
- Can I see that distinguishing feature clearly?
Confidence Levels:
+----------+---------------------------+---------------------------+
| Level | Criteria | Action |
+----------+---------------------------+---------------------------+
| Certain | All features match; no | Safe to collect (for |
| | look-alike confusion; | experienced identifiers) |
| | experienced with species | |
+----------+---------------------------+---------------------------+
| Probable | Most features match; | DO NOT eat. Collect for |
| | one or two uncertain; | further study (spore |
| | look-alike eliminated | print, expert review) |
+----------+---------------------------+---------------------------+
| Possible | Some features match; | DO NOT eat. Photograph |
| | look-alike not fully | and seek expert opinion |
| | eliminated | |
+----------+---------------------------+---------------------------+
| Unknown | Cannot narrow to species | DO NOT eat. DO NOT |
| | | handle extensively |
+----------+---------------------------+---------------------------+
Expected: A species-level identification with explicit confidence level and look-alike assessment.
On failure: If identification stalls at genus level, that is acceptable for learning purposes. For consumption, only species-level "Certain" identification is acceptable.
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