Sources · the evidence layer
Every source the corpus cites
Every claim in the Fieldbook is traceable to a source. This is the directory of them: 125 primary domains, each graded by credibility tier and linked to its own provenance record. Tiers are the trust bands: T1 authorities in blue, T2 reputable secondary in amber, T3 weaker or aggregator sources in grey.
T1 · authoritative · 121 domains
GitHubT1
github.com · 313 citations
OpenRouterT1
openrouter.ai · 307 citations
Epoch AIT1
epoch.ai · 180 citations
arXivT1
arxiv.org · 97 citations
METRT1
metr.org · 19 citations
AnthropicT1
anthropic.com · 15 citations
docs.cloud.googleT1
docs.cloud.google.com · 15 citations
Cloudflare BlogT1
blog.cloudflare.com · 14 citations
OpenAIT1
openai.com · 11 citations
Cloudflare DevelopersT1
developers.cloudflare.com · 10 citations
palantirT1
palantir.com · 8 citations
Google CloudT1
cloud.google.com · 7 citations
langchain-ai.githubT1
langchain-ai.github.io · 7 citations
AWS DocsT1
docs.aws.amazon.com · 7 citations
MicrosoftT1
microsoft.com · 5 citations
SalesforceT1
salesforce.com · 5 citations
AWST1
aws.amazon.com · 5 citations
Hugging FaceT1
huggingface.co · 5 citations
Microsoft LearnT1
learn.microsoft.com · 5 citations
NISTT1
nist.gov · 5 citations
ACL AnthologyT1
aclanthology.org · 5 citations
githubT1
github.blog · 4 citations
lovableT1
lovable.dev · 4 citations
sierraT1
sierra.ai · 4 citations
decagonT1
decagon.ai · 4 citations
VercelT1
vercel.com · 4 citations
Model Context ProtocolT1
modelcontextprotocol.io · 4 citations
CursorT1
cursor.com · 4 citations
GoogleT1
blog.google · 3 citations
IntercomT1
intercom.com · 3 citations
relevanceaiT1
relevanceai.com · 3 citations
elevenlabsT1
elevenlabs.io · 3 citations
AiderT1
aider.chat · 3 citations
ClayT1
clay.com · 3 citations
runwaymlT1
runwayml.com · 3 citations
gleanT1
glean.com · 3 citations
developers.googleT1
developers.google.com · 3 citations
docs.langchainT1
docs.langchain.com · 3 citations
getzepT1
getzep.com · 3 citations
A2A ProtocolT1
a2a-protocol.org · 3 citations
research.checkpointT1
research.checkpoint.com · 3 citations
Google DeepMindT1
deepmind.google · 2 citations
docs.cursorT1
docs.cursor.com · 2 citations
SourcegraphT1
sourcegraph.com · 2 citations
cognitionT1
cognition.com · 2 citations
HubSpotT1
hubspot.com · 2 citations
docs.lindyT1
docs.lindy.ai · 2 citations
ZapierT1
zapier.com · 2 citations
HarveyT1
harvey.ai · 2 citations
HebbiaT1
hebbia.com · 2 citations
makeT1
make.com · 2 citations
n8nT1
n8n.io · 2 citations
retoolT1
retool.com · 2 citations
airtableT1
airtable.com · 2 citations
codaT1
coda.io · 2 citations
bardeenT1
bardeen.ai · 2 citations
swe-agentT1
swe-agent.com · 2 citations
continueT1
continue.dev · 2 citations
zedT1
zed.dev · 2 citations
warpT1
warp.dev · 2 citations
boltT1
bolt.new · 2 citations
v0T1
v0.dev · 2 citations
11xT1
11x.ai · 2 citations
aisdrT1
aisdr.com · 2 citations
regieT1
regie.ai · 2 citations
ApolloT1
apollo.io · 2 citations
GongT1
gong.io · 2 citations
jasperT1
jasper.ai · 2 citations
copyT1
copy.ai · 2 citations
heygenT1
heygen.com · 2 citations
synthesiaT1
synthesia.io · 2 citations
vapiT1
vapi.ai · 2 citations
retellaiT1
retellai.com · 2 citations
blandT1
bland.ai · 2 citations
crestaT1
cresta.com · 2 citations
ironcladappT1
ironcladapp.com · 2 citations
robinaiT1
robinai.com · 2 citations
sukiT1
suki.ai · 2 citations
notablehealthT1
notablehealth.com · 2 citations
glassT1
glass.health · 2 citations
auquanT1
auquan.com · 2 citations
kenshoT1
kensho.com · 2 citations
juliusT1
julius.ai · 2 citations
hexT1
hex.tech · 2 citations
DatabricksT1
databricks.com · 2 citations
snowflakeT1
snowflake.com · 2 citations
datadoghqT1
datadoghq.com · 2 citations
runwhenT1
runwhen.com · 2 citations
elicitT1
elicit.com · 2 citations
consensusT1
consensus.app · 2 citations
perplexityT1
perplexity.ai · 2 citations
paradoxT1
paradox.ai · 2 citations
oracleT1
oracle.com · 2 citations
netlifyT1
netlify.com · 2 citations
flyT1
fly.io · 2 citations
modalT1
modal.com · 2 citations
togetherT1
together.ai · 2 citations
basetenT1
baseten.co · 2 citations
digitaloceanT1
digitalocean.com · 2 citations
renderT1
render.com · 2 citations
support.airtableT1
support.airtable.com · 2 citations
docs.netlifyT1
docs.netlify.com · 2 citations
developers.notionT1
developers.notion.com · 2 citations
supabaseT1
supabase.com · 2 citations
docs.mem0T1
docs.mem0.ai · 2 citations
docs.lettaT1
docs.letta.com · 2 citations
redisT1
redis.io · 2 citations
upstashT1
upstash.com · 2 citations
hdsr.mitpress.mitT1
hdsr.mitpress.mit.edu · 2 citations
ISOT1
iso.org · 2 citations
OWASPT1
owasp.org · 2 citations
inspect.aisi.orgT1
inspect.aisi.org.uk · 2 citations
SWE-benchT1
swebench.com · 2 citations
os-world.githubT1
os-world.github.io · 2 citations
WebArenaT1
webarena.dev · 2 citations
tbenchT1
tbench.ai · 2 citations
e2bT1
e2b.dev · 2 citations
Mistral AIT1
mistral.ai · 2 citations
invariantlabsT1
invariantlabs.ai · 2 citations
docs.githubT1
docs.github.com · 2 citations
docs.anthropicT1
docs.anthropic.com · 2 citations
T2 · reputable secondary · 3 domains
Artificial AnalysisT2
artificialanalysis.ai · 18 citations
TechCrunchT2
techcrunch.com · 6 citations
mckinseyT2
mckinsey.com · 5 citations
T3 · weak / aggregator · 1 domain
Field notes
A crawlable directory of primary sources, graded by credibility tier
Every claim in the Fieldbook resolves to a source, and this index makes those sources addressable, grouped by domain and graded by credibility tier. It currently cites 125 source domains, 121 graded T1, 3 T2 and 1 T3.
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T1 is primary or authoritative: a vendor writing about its own product, a research body, a standards organisation or a government dataset. T2 is reputable secondary. T3 is weak and is only ever used as a pointer, never as the basis of a confirmed datapoint. The grade travels with the claim, so a reader can check the corpus rather than believe it.
From the corpus, curated by Brandon Chaplin