--- title: "buildwithfern.com llms.txt, graded: Agent Ready HTML" description: "The buildwithfern.com llms.txt parsed and graded A against the llmstxt.org structure: 2 sections, 45 links, 4.7 KB. Read 2026-11-04." canonical: https://agentreadyhtml.com/llms-txt-index/buildwithfern-com-learn/ site: "Agent Ready HTML" last_updated: 2026-11-05 section: "llms.txt Index" --- # buildwithfern.com llms.txt, graded: Agent Ready HTML > The buildwithfern.com llms.txt parsed and graded A against the llmstxt.org structure: 2 sections, 45 links, 4.7 KB. Read 2026-11-04. Source: https://agentreadyhtml.com/llms-txt-index/buildwithfern-com-learn/ Site: Agent Ready HTML Last reviewed: 2026-11-05 # buildwithfern.com llms.txt In short buildwithfern.com serves a 4.7 KB llms.txt with 2 H2 sections and 45 links, graded A on the llmstxt.org structure (6 of 6 checks). It passes every check. The home page links the file. No llms-full.txt was found. Read 4 November 2026. **llms.txt** 4.7 KB, 58 lines ```markdown # Fern Documentation > Build better developer experiences. Generate SDKs in TypeScript, Python, Go, Java, C#, PHP, Ruby, Swift & Rust. Create interactive API docs with AI search. ## Instructions for AI Agents - For clean Markdown of any page, append `.md` to the page URL - For section-specific indexes, append `/llms.txt` to any section URL - For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://buildwithfern.com/learn/_mcp/server ## Products - [Home](https://buildwithfern.com/learn/home/llms.txt): Products that […] your developer experience - [Home](https://buildwithfern.com/learn/home.md) - [SDKs](https://buildwithfern.com/learn/sdks/llms.txt): Generate client libraries in multiple languages - [Introduction](https://buildwithfern.com/learn/sdks/current/overview/introduction.md) - [How it works](https://buildwithfern.com/learn/sdks/current/overview/how-it-works.md) - [Quickstart](https://buildwithfern.com/learn/sdks/current/overview/quickstart.md) - [Project structure](https://buildwithfern.com/learn/sdks/current/overview/project-structure.md) - [Adding custom code](https://buildwithfern.com/learn/sdks/current/overview/custom-code.md) - [CLI Generator](https://buildwithfern.com/learn/cli-generator/llms.txt): Generate a CLI from your API definition - [Overview](https://buildwithfern.com/learn/cli-generator/get-started/overview.md) - [Quickstart](https://buildwithfern.com/learn/cli-generator/get-started/quickstart.md) - [Features](https://buildwithfern.com/learn/cli-generator/get-started/features.md) - [Authentication](https://buildwithfern.com/learn/cli-generator/get-started/authentication.md) - [OpenAPI extensions](https://buildwithfern.com/learn/cli-generator/get-started/openapi-extensions.md) - [MCP Generator](https://buildwithfern.com/learn/mcp-generator/llms.txt): Generate and host an MCP server from your API definition - [Quickstart](https://buildwithfern.com/learn/mcp-generator/get-started/quickstart.md) - [Manage in the dashboard](https://buildwithfern.com/learn/mcp-generator/get-started/manage.md) - [Docs](https://buildwithfern.com/learn/docs/llms.txt): Generate beautiful, interactive documentation websites - [Capabilities](https://buildwithfern.com/learn/docs/getting-started/capabilities.md) - [How it works](https://buildwithfern.com/learn/docs/getting-started/how-it-works.md) - [Quickstart](https://buildwithfern.com/learn/docs/getting-started/quickstart.md) - [Project structure](https://buildwithfern.com/learn/docs/getting-started/project-structure.md) - [October 30, 2026](https://buildwithfern.com/learn/docs/changelog/2026/10/30.md) - [Dashboard](https://buildwithfern.com/learn/dashboard/llms.txt): Manage your Fern projects and settings - [Overview](https://buildwithfern.com/learn/dashboard/getting-started/overview.md) - [Member permissions](https://buildwithfern.com/learn/dashboard/configuration/permissions.md) - [API keys](https://buildwithfern.com/learn/dashboard/configuration/api-keys.md) - [Connect a Git repository](https://buildwithfern.com/learn/dashboard/configuration/github-repo.md) - [Set up SSO](https://buildwithfern.com/learn/dashboard/configuration/sso.md) - [Fern CLI](https://buildwithfern.com/learn/cli-api-reference/llms.txt): Manage and configure your Fern projects - [Get started with Fern CLI](https://buildwithfern.com/learn/cli-api-reference/cli-reference/overview.md) - [Global options](https://buildwithfern.com/learn/cli-api-reference/cli-reference/options.md) - [General commands](https://buildwithfern.com/learn/cli-api-reference/cli-reference/general-commands.md) - [Docs commands](https://buildwithfern.com/learn/cli-api-reference/cli-reference/docs-commands.md) - [SDK commands](https://buildwithfern.com/learn/cli-api-reference/cli-reference/sdk-commands.md) - [API Definitions](https://buildwithfern.com/learn/api-definitions/llms.txt): Import and configure your API specifications - [What is an API definition?](https://buildwithfern.com/learn/api-definitions/overview/what-is-an-api-definition.md) - [Project structure](https://buildwithfern.com/learn/api-definitions/overview/project-structure.md) - [Overview](https://buildwithfern.com/learn/api-definitions/openapi/overview.md) - [Overlays](https://buildwithfern.com/learn/api-definitions/openapi/overlays.md) - [Overrides](https://buildwithfern.com/learn/api-definitions/openapi/overrides.md) - [OpenAPI](https://agentreadyhtml.com/learn/api-definitions/openapi/overview/llms.txt): Define REST and webhook APIs - [AsyncAPI](https://agentreadyhtml.com/learn/api-definitions/asyncapi/overview/llms.txt): Define event-driven and WebSocket APIs - [OpenRPC](https://agentreadyhtml.com/learn/api-definitions/openrpc/overview/llms.txt): Define JSON-RPC APIs - [gRPC](https://agentreadyhtml.com/learn/api-definitions/grpc/overview/llms.txt): Define APIs with Protocol Buffers ``` First 57 of 58 lines. 1 span shown as \[…\] because the words or characters in them are rejected by this site's own style rules; the live file has them. **Parse** graded A, 6 of 6 file: https://buildwithfern.com/learn/llms.txt Fern Documentation Build better developer experiences. Generate SDKs in TypeScript, Python, Go, Java, C#, PHP, Ruby, Swift & Rust. Create interactive API docs with AI search. 2 sections, 45 links, no Optional section. Ora's cached score: 72, grade B, scanned 4 November 2026. ## The parse buildwithfern.com lists 45 links: 45 point at buildwithfern.com or a relative path, 0 point elsewhere. The hosts it links most: buildwithfern.com (41). | H2 section | Links | | --- | --- | | Instructions for AI Agents | 0 | | Products | 45 | ## Grade against the llmstxt.org structure The file passes all six checks. The grade is the count of passed checks: six is A, five is B, four is C, three is D, fewer is F. It measures structure only. Whether any agent reads the file is a separate question, covered on the [llms.txt reference](https://agentreadyhtml.com/llms-txt/). | Check | Result | Detail | | --- | --- | --- | | Starts with an H1 naming the site or project | Pass | H1: Fern Documentation | | Has a blockquote summary under the H1 | Pass | Blockquote summary found. | | Has at least one H2 section that lists links | Pass | 2 H2 sections, 1 with links. | | At least 80 percent of links point at the same site | Pass | 45 of 45 links stay on buildwithfern.com (100 percent). | | Under 100 KB | Pass | 4832 bytes as served. | | Plain markdown, no HTML | Pass | No HTML document markers in the body. | ## Ora's cached score Ora's cached report for buildwithfern.com gives it **72 of 100, grade B**, scanned on 4 November 2026. Its Access layer, which holds the read-layer checks below, scored 43 of 62 check points. Read from GET ora.ai/api/score/buildwithfern.com on 5 November 2026. The score is Ora's, not this site's, and the structure grade above is a different measure: it grades the llms.txt file against the llmstxt.org proposal, while Ora's score covers the whole site. [Ora's report for buildwithfern.com](https://ora.ai/score/buildwithfern.com?utm_source=agentreadyhtml.com&utm_medium=referral&utm_campaign=index-entry) has every layer. | Ora check (Access layer) | Result | Points | | --- | --- | --- | | Sitemap exists | Pass | 2 of 2 | | Content without JavaScript | Fail | 0 of 3 | | Not blocked by bot detection | Pass | 2 of 2 | | Markdown URL fallback | Pass | 2 of 2 | | llms.txt exists | Pass | 1 of 1 | | llms.txt formatting | Partial | 1 of 2 | | JSON-LD structured data | Fail | 0 of 4 | | Metadata completeness | Partial | 1 of 2 | | llms.txt links resolve | Pass | 2 of 2 | | Markdown alternate link | Pass | 1 of 1 | | Redirect hygiene | Pass | 1 of 1 | | Page token budget | Pass | 1 of 1 | | Code fence validity | Pass | 1 of 1 | | Content behind auth | Pass | 2 of 2 | | OpenAPI spec published | Pass | 7 of 7 | | Markdown agent docs | Pass | 1 of 1 | | Markdown negotiation with Vary | Fail | 0 of 1 | | Markdown for agent user agents | Fail | 0 of 1 | | Agent crawler reachability | Pass | 2 of 2 | ## Linking and the companion file The home page of buildwithfern.com links the file in its HTML. Ora's lab found (2026-10-19) that 86 percent of llms.txt fetches by agents arrived through a link, so an unlinked file is mostly a file nobody opens. No llms-full.txt was found at the same root. ## How it compares At 4.7 KB the file is larger than 31 percent of the 2,529 plain-text llms.txt files in this edition, and its 45 links put it ahead of 57 percent of them on link count. The home page declares no generator. Size bucket: 2 to 10 KB. Curated example. Category: Docs platform. Why it is in the index: Generated per navigation node; this is the docs root. Owner as listed: Fern. Live file: [https://buildwithfern.com/learn/llms.txt](https://buildwithfern.com/learn/llms.txt). Read 4 November 2026. If the file has since changed or gone, the live URL is the authority; this page records what the crawl read on that date. - [All entries](https://agentreadyhtml.com/llms-txt-index/) - [Edition 2026-11-04](https://agentreadyhtml.com/llms-txt-index/2026-11-04/) - [See the home page as a plain fetch](https://agentreadyhtml.com/viewer/?url=https%3A%2F%2Fbuildwithfern.com%2F) ## Sources 1. [buildwithfern.com llms.txt](https://buildwithfern.com/learn/llms.txt) https://buildwithfern.com/learn/llms.txt, read 4 November 2026 2. [llms.txt proposal (llmstxt.org)](https://llmstxt.org/) https://llmstxt.org/, read 4 November 2026 3. [Tranco list 746WX (crawl universe)](https://tranco-list.eu/list/746WX) https://tranco-list.eu/list/746WX, read 4 November 2026 4. [Ora: AgentReady launch post (the 86 percent finding)](https://ora.ai/blog/agentready-launch?utm_source=agentreadyhtml.com&utm_medium=referral&utm_campaign=entry) https://ora.ai/blog/agentready-launch, read 4 November 2026 5. [Ora llms.txt (GET /api/score/{domain} looks up a cached score)](https://ora.ai/llms.txt?utm_source=agentreadyhtml.com&utm_medium=referral&utm_campaign=entry) https://ora.ai/llms.txt, read 5 November 2026 Last reviewed 5 November 2026 Edition Crawl 2026-11-04 Ora reads 2026-11-05 Page updated 2026-11-05 Method How the viewer reads a page, how a file is graded and how a platform is scored: [the method page](https://agentreadyhtml.com/method/).