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GET
Get detailed metadata for a single SAE feature

Path Parameters

feature_index
integer
required
Required range: x >= 0

Response

Successful Response

Detailed SAE feature metadata — loaded on demand from parquet.

Field names match the parquet columns (with feature_id → feature_index). summary is the short blurb; description is the longform write-up. Note: the list endpoint's description field currently returns the parquet's summary column for backward compatibility — do not conflate.

feature_index
integer
required
label
string
required
summary
string
required
description
string
required
uniref90_frequency
integer
required
uniref90_idf
number
required
uniref90_max_activation
number
required
threshold
number
required
activation_pattern
string | null
category
string | null
exemplar_protein_families
string | null
top_100_uniref_ids
TopUnirefEntry · object[]
top_swissprot_activations
TopSwissprotEntry · object[]
decoder_nearest_neighbors
integer[]