What agents should know before contributing

honojs/hono

Web framework built on Web Standards

Read by Bluet from 3 files written for agents and 300 merged pull requests on 2026-09-24. Not reviewed by the maintainers.

Rules its files tell agents (4)

mustYou may use AI to contribute, but it must never waste a maintainer's time or make their work unpleasant.
docs/CONTRIBUTING.md
shouldDO NOT import middleware from hono/mod.ts.
docs/MIGRATION.md
shouldDo not use interface.
You must use type to define the Generics for new Hono. Do not use interface.
docs/MIGRATION.md
shouldDO NOT use c.req.parseBody for parsing JSON, text, or ArrayBuffer.
docs/MIGRATION.md

#4459Correct hop-by-hop header handling per RFC 9110
#4717add progressive locale code truncation to normalizeLanguage
#4504skip caching when `Vary: *` is present
#4723return `string | undefined` from param() when path type is any
#4915key cache entries by configured vary headers
#4973expand "::" to eight zero groups
#4998render the unspecified address binary as "::"
#5025deduplicate Cache-Control directives case-insensitively
#5119add first-class support for QUERY requests
#5137set Vary: Accept-Encoding on negotiated responses
#5141add a configurable WWW-Authenticate realm
#5142add jwt and lambda authorizer types for API Gateway v2
#5179allow a function component to return an array
#5199resolve incorrect incremental hashing for chunked responses
#5204render async children of document metadata tags instead of [object Promise]
#5215send falsy JSON bodies
#5222match If-None-Match tags with optional whitespace before the comma
#5250exempt OPTIONS request from CSRF validation
#5255support wildcard media types and specificity ordering in defaultMatch
#5272skip an undefined entry inside a query array
#5311skip accept entries with quality 0 when matching
#5349treat the q parameter name as case-insensitive
#5357clamp a negative q to 0, not 1
#5376match media types and language tags case-insensitively
#5377don't break responses with unparseable JSON bodies

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