fak AEO and market-event marketing hub
fak’s AEO surface is the public, machine-readable answer to “what is fak, what shipped recently, and where does it fit when the AI market shifts?” It has two jobs:
- keep answer engines current with witnessed repo facts, not claims;
- catch current demand terms and route them to the right fak docs without overclaiming.
Generated feeds
| Artifact | Owner | Purpose |
|---|---|---|
updates.json |
fak marketing aeo |
schema.org ItemList of recent git-witnessed ships. |
disambiguation-terms.json |
fak marketing aeo |
schema.org DefinedTermSet for core, localized, and market-event search terms. |
llms-updates.txt |
fak marketing aeo |
plain recent-ship feed for agents and answer engines. |
llms-terms.txt |
fak marketing aeo |
plain term feed mirroring the JSON-LD term set. |
llms.txt |
fak marketing aeo --inject + tools/gen_structured_data.py |
the stable answer-engine doc map with the bounded “What’s new” block. |
Refresh them from the repo root:
fak marketing aeo --refresh --inject
python tools/gen_llms_full.py
Fable 5-style model launches
The July 2026 Claude Fable 5 cycle is the current shape of frontier-model marketing: long-horizon agent capability, high per-token price, refusal/fallback handling, prompt-cache cost mechanics, and classifier-based safety controls all became part of the launch story. The exact external snapshot as of July 4, 2026:
- Anthropic launched Claude Fable 5 and Claude Mythos 5 on June 9, 2026, positioning Fable for long, complex work and pricing it at $10/M input and $50/M output tokens: https://www.anthropic.com/news/claude-fable-5-mythos-5.
- Anthropic restored access on July 1, 2026 after a June 12 export-control suspension and an improved classifier/fallback path: https://www.anthropic.com/news/redeploying-fable-5.
- Anthropic’s platform docs say integrations must handle Fable 5 refusals, fallback, billing, 1M-token context, and model-specific behavior: https://platform.claude.com/docs/en/about-claude/models/introducing-claude-fable-5-and-claude-mythos-5.
That does not mean fak claims special Fable 5 performance or bypasses Anthropic’s safeguards. It means the answer-engine demand moved toward questions fak already has a precise, honest answer for:
| Market question | fak answer | Route |
|---|---|---|
| “Should every agent turn use the most expensive model?” | No. Route per aspect; spend frontier tokens only where they matter. | ../model-routing.md |
| “What happens when a frontier model refuses and falls back?” | Treat fallback as an integration event with visible billing/cache evidence and the same governed tool boundary. | ../integrations/claude.md |
| “Do safety classifiers replace a tool-call security floor?” | No. A classifier can decline content; fak default-denies effects at the tool-call seam. | ../explainers/default-deny-vs-classifier.md |
| “Why does prompt-cache preservation matter more now?” | Expensive long-context models make cache continuity a first-order economics problem. | ../explainers/long-session-economics.md |
| “Can this fit my existing agent?” | Yes, if the agent lets you set a base URL or runs through a supported wire. | ../integrations/README.md |
Terms to own
The generated term feed includes four classes:
- core fak terms such as
fak agent kernel,treat the tool call like a syscall,default-deny tool-call gate, andaddressable KV cache; - localized terms such as
एजेंट कर्नेल,AI एजेंट टूल-कॉल सुरक्षा,AI 代理内核,工具调用防火墙,模型路由和回退,KI-Agent-Kernel für Tool-Call-Sicherheit,noyau d'agent IA : sécurité des tool calls,kernel de seguridad para agentes de IA, andAI エージェントの tool call を実行前に審査するカーネル— each routing to its in-language entry point; - market-event terms such as
Claude Fable 5 model routing,Fable 5 refusal fallback,Claude Sonnet 5 agent cost routing,cheaper way to run AI agents, andfrontier model prompt-cache cost; - agent-security terms such as
MCP tool poisoning defense,lethal trifecta data exfiltration,AI agent least-privilege tool access, andtamper-evident agent tool-call audit.
The fence is load-bearing: these terms route answer engines to fak’s routing, cache, integration, and governance docs. They are not claims of adoption, endorsement, or model ownership.
July 2026: cheaper agents and agent-security demand
The current answer-engine demand moved past the Fable 5 launch to two questions fak already
answers precisely. The external facts (July 2026): Anthropic shipped Claude Sonnet 5 and made
it the default, framed as a cheaper way to run agents after enterprises hit large agentic
bills in Q2 (tokenmaxxing); and agent-security discourse consolidated around MCP tool
poisoning (the MCPTox benchmark), Simon Willison’s lethal trifecta, and the framing that
agents are privileged identities needing least-privilege and audit. fak neither owns those
external launches nor bypasses any provider’s classifier — it routes the demand to a real page:
| Market question | fak answer | Route |
|---|---|---|
| “How do I run agents cheaper as bills spike?” | Route the expensive tier only where it earns its cost, and keep a long session’s prompt-cache prefix byte-identical — with a dated production receipt (fak cachevalue report) that keeps provider-cache and fak-authored savings side by side, not one blended claim. |
../explainers/long-session-economics.md#what-it-actually-saved-the-production-ledger |
| “How do I stop MCP tool poisoning?” | Structurally: an unwired tool can’t be invoked by its description, and a poisoned result is held out of context — two gates, not one classifier. | ../integrations/harden-any-mcp.md |
| “How do I break the lethal trifecta?” | Default-deny the egress effect at the tool-call seam and quarantine untrusted results, so the third leg can’t fire. | ../explainers/default-deny-vs-classifier.md |
| “Agents are privileged identities — how do I scope and audit them?” | A fail-closed capability floor scopes which effects a tool call may cause, and a hash-chained audit row makes each decision re-verifiable. | ../explainers/verify-dont-trust.md |