2 genuinely different descriptions of this tool
Plain text · sha256 74921e4371b5
The description, rendered
This renders the markdown inside the description, so it isn’t quite the description itself.The raw view and the plain text are the bytes as they were sent.
- Allows Claude to search the web and use the results to inform responses
- Provides up-to-date information for current events and recent data
- Returns search result information formatted as search result blocks, including links as markdown hyperlinks
- Use this tool for accessing information beyond Claude's knowledge cutoff
- Searches are performed automatically within a single API call
CRITICAL REQUIREMENT - You MUST follow this:
-
After answering the user's question, you MUST include a "Sources:" section at the end of your response
-
In the Sources section, list all relevant URLs from the search results as markdown hyperlinks: Title
-
This is MANDATORY - never skip including sources in your response
-
Example format:
[Your answer here]
Sources:
Usage notes:
- Domain filtering is supported to include or block specific websites
- Web search is only available in the US
IMPORTANT - Use the correct year in search queries:
- The current month is September 2026. You MUST use this year when searching for recent information, documentation, or current events.
- Example: If the user asks for "latest React docs", search for "React documentation" with the current year, NOT last year
What it accepts
3 parameters The JSON parameter schema sent beside this description, 577 characters of it. Name, type, then whether the client marked it required.allowed_domains
string[]
optional
Only include search results from these domains
blocked_domains
string[]
optional
Never include search results from these domains
query
string
required
The search query to use
sha256 78ab127603dd · the schema as the client sent it:
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"allowed_domains": {
"description": "Only include search results from these domains",
"items": {
"type": "string"
},
"type": "array"
},
"blocked_domains": {
"description": "Never include search results from these domains",
"items": {
"type": "string"
},
"type": "array"
},
"query": {
"description": "The search query to use",
"minLength": 2,
"type": "string"
}
},
"required": [
"query"
],
"type": "object"
}