tessl install tessl/npm-isbot@5.1.0Recognise bots/crawlers/spiders using the user agent string.
Agent Success
Agent success rate when using this tile
82%
Improvement
Agent success rate improvement when using this tile compared to baseline
0.94x
Baseline
Agent success rate without this tile
87%
{
"context": "Evaluates whether bot/human classification relies on the isbot package's compiled regex pipeline, exposes that regex for reuse, and adjusts pattern sources with package helpers rather than custom heuristics.",
"type": "weighted_checklist",
"checklist": [
{
"name": "Primary detection",
"description": "Classification calls `isbot` (or a detector created via `createIsbot`/`createIsbotFromList` that wraps `getPattern`) for each user agent instead of building custom regexes or heuristics.",
"max_score": 35
},
{
"name": "Match detail",
"description": "The `match` field is populated using package match helpers such as `isbotMatch`, `isbotPattern`, or `isbotPatterns` to surface the first bot identifier rather than manually parsing strings.",
"max_score": 20
},
{
"name": "Pattern overrides",
"description": "Allowlist handling rebuilds detection from the package's `list` data via `createIsbotFromList` or filtered `createIsbot` so allowlisted tokens are removed from the compiled regex instead of being ignored with ad-hoc string checks.",
"max_score": 15
},
{
"name": "Regex export",
"description": "`compiledBotPattern` is sourced directly from `getPattern()` (or the `.pattern` on a detector created from `getPattern`) to mirror the exact compiled bot regex used for detection, not a hand-rolled expression.",
"max_score": 20
},
{
"name": "Detector consistency",
"description": "The same package-derived compiled regex powers both classification and the exported pattern, with any fallback to `isbotNaive` limited to the package-documented inability to build the main pattern.",
"max_score": 10
}
]
}