How this issue was assembled

Every digest is drafted by an autonomous pipeline. No human edits before publication. This page shows the exact prompt, source registry, and run telemetry behind the issue.

Run summary

Date
2026-07-02
Digest model
claude-sonnet-4-6 · 53,545 in · 6,945 out
Roundup model
claude-haiku-4-5-20251001 · alias claude-haiku-4-5 · 52,346 in · 5,844 out
Sources
49/104 ok · 19 failed · 0 blocked · 36 empty
Items
169 fetched · 169 sent to LLM
Duration
585.6 s
User-Agent
evanalbright-digest/0.1

Retention funnel

Where each stage's items came from. Single axis, four stops; each bar is split by source tier so you can see whether the mix shifts as we cut down to what readers actually see.

Sources
104
feeds in registry
Fetched
169
items after dedup · 162.5% of previous · 162.5% of start
Considered
169
reached an LLM · 100.0% of previous · 162.5% of start
Published
0
in this issue · 0.0% of previous · 0.0% of start
Sources Tier 0 Tier 1 Tier 2 Tier 3

Fetch stats

49 ok 36 empty 19 failed 0 blocked
Source Status Items ms Notes
Vercel Blog ok 12 910
Marginal Revolution (Tyler Cowen) ok 12 86
STAT News ok 12 209
r/MachineLearning ok 12 757
r/ClaudeAI ok 12 3408
Latent Space ok 11 59
Simon Willison ok 9 159
Dwarkesh Patel (YouTube) ok 9 1504
Hacker News (front page) ok 9 332
Cloudflare Blog ok 5 253
Hugging Face Blog ok 5 213
Google AI / DeepMind ok 4 272
Kyla Scanlon ok 3 1505
Rowan Cheung ok 3 1341
CodeEmporium ok 3 1684
Maxinomics ok 3 1362
Sabine Hossenfelder ok 3 1507
Astral Codex Ten (Scott Alexander) ok 3 139
The Pragmatic Engineer ok 2 123
Conversable Economist (Timothy Taylor) ok 2 122
Tomasz Tunguz ok 2 146
a16z News ok 2 86
Liberty Street Economics (NY Fed) ok 2 141
Google Research Blog ok 2 384
Dwarkesh Patel ok 2 260
Works in Progress ok 2 623
Fly.io Blog ok 1 147
Artificial Analysis ok-html-fallback 1 2551
Stripe Engineering ok-html-fallback 1 2087
Shopify Engineering ok-html-fallback 1 2228
All Things Distributed (Werner Vogels) ok 1 46
The Generalist (Mario Gabriele) ok 1 148
Discord Engineering ok-html-fallback 1 1863
LangChain Blog ok-html-fallback 1 2477
Hunter Walk ok 1 66
Anthropic News ok-html-fallback 1 10356
Out-Of-Pocket ok-html-fallback 1 2040
Asimov Press ok-html-fallback 1 1744
Two Minute Papers ok 1 118
Andrej Karpathy (GitHub) ok-html-fallback 1 2193
Mo Bitar (YouTube) ok-discovered 1 2842
Patrick Boyle ok 1 9
Fireship ok 1 1526
Money & Macro ok 1 1701
Y Combinator (YouTube) ok 1 1359
Noahpinion (Noah Smith) ok 1 53
a16z (YouTube) ok 1 1501
The Ezra Klein Show ok 1 563
Bessemer Atlas ok-html-fallback 1 295119
Interconnects (Nathan Lambert) no-items 0 189
Sebastian Raschka no-items 0 100
Eugene Yan no-items 0 114
Chip Huyen no-items 0 539
Alpha Signal html-error 0 1562 Request failed with error code 403
The Batch (deeplearning.ai) html-error 0 1701 Request failed with error code 403
Data Science Weekly rss-error 0 2030 Request failed with error code 403
OpenAI News html-error 0 1535 Request failed with error code 403
PostHog Engineering no-items 0 592
Not Boring (Packy McCormick) no-items 0 63
Kwokchain (Kevin Kwok) no-items 0 85
Above the Crowd (Bill Gurley) no-items 0 76
Elad Gil no-items 0 1842
Sequoia Capital no-items 0 190
AVC (Fred Wilson) rss-error 0 2485 Request failed with error code 415
Fierce Pharma no-items 0 49
Fierce Biotech no-items 0 52
Health Tech Nerds no-items 0 2578
In The Pipeline (Derek Lowe) html-error 0 1953 Request failed with error code 403
Ground Truths (Eric Topol) rss-error 0 2036 Request failed with error code 403
Rock Health Insights no-items 0 201
Andrej Karpathy (YouTube) no-items 0 59
Decoding Bio rss-error 0 2035 Request failed with error code 403
Robert Wachter rss-error 0 2030 Request failed with error code 403
Acquired no-items 0 150
Yannic Kilcher no-items 0 1507
r/LLMDevs rss-error 0 2900 Request failed with error code 429
r/LocalLLaMA rss-error 0 2907 Request failed with error code 429
r/ExperiencedDevs rss-error 0 3004 Request failed with error code 429
r/devops rss-error 0 3009 Request failed with error code 429
r/biotech rss-error 0 2346 Request failed with error code 429
r/medicine rss-error 0 3003 Request failed with error code 429
r/pharmacy rss-error 0 3000 Request failed with error code 429
AI Explained no-items 0 9
r/pharmaindustry rss-error 0 3005 Request failed with error code 429
r/biotechnology rss-error 0 3005 Request failed with error code 429
Ben Felix no-items 0 1497
DeepLearningAI no-items 0 1519
Internet of Bugs no-items 0 1670
Anthropic (YouTube) no-items 0 1488
Practical Engineering no-items 0 1307
The Robot Brains Podcast no-items 0 1643
3Blue1Brown no-items 0 1303
Neural Breakdown with AVB no-items 0 1641
Hannah Fry no-items 0 1653
Net Interest (Marc Rubinstein) no-items 0 128
Apricitas Economics (Joseph Politano) no-items 0 127
Bits about Money (Patrick McKenzie) no-items 0 338
Bank Underground (Bank of England) no-items 0 822
Lilian Weng no-items 0 25
Klement on Investing rss-error 0 2208 Request failed with error code 403
Dan Luu no-items 0 471
Brendan Gregg no-items 0 143
Made of Bugs (Nelson Elhage) no-items 0 495
Meta AI Research no-items 0 3319

Style rules

Hard punctuation and phrase rules applied to all generated prose.

# Style — hard rules for every paragraph

These rules apply to all generated prose (digest paragraphs and study why-lines). They are mechanically enforced; output that violates them will be repaired or rejected.

## Punctuation: forbidden

- **No em-dash (—).** Not anywhere. Use semicolons, commas, periods, or parentheses.
- **No en-dash (–) as punctuation.** Only acceptable when part of an established numeric range that you are quoting verbatim from a source.
- **No double-hyphen (`--`) used as a dash substitute.** Same intent as the em-dash; same ban.
- **No standalone hyphens used as punctuation.** Hyphens are only legal as part of a hyphenated compound word that already exists in the language (`co-founder`, `self-hosted`, `mid-cap`). They are never legal as a beat or pause in a sentence.

If you find yourself reaching for any of those, you have probably written a run-on. The fix is usually to split the sentence at a semicolon or period.

## Phrases to avoid (AI-slop list)

Do not use these unless you are quoting them verbatim from a source you are summarising. The list is maintained alongside this file in `prompts/slop-blocklist.txt` and is checked programmatically.

- "load-bearing" (overused metaphor)
- "delve" / "delves into" / "delving"
- "moreover" / "furthermore" (as paragraph openers)
- "in today's fast-paced..."
- "game-changing" / "game-changer"
- "navigating the landscape"
- "tapestry"
- "intricate" (as a default adjective)
- "underscores" (as in "this underscores the importance of")
- "key takeaway"
- "ushering in"
- "transformative"
- "robust" (as filler)
- "leverage" (as a verb, when "use" works)
- "synergy"
- "comprehensive" (as filler)
- "in the realm of"
- "a testament to"
- "stands as a beacon"
- "navigate the complexities"
- "harness the power of"
- "unlock the potential"
- "the rise of"
- "in an era where"
- "paradigm shift"

If a source actually contains one of those phrases, you may quote it but you must put it in quotes and attribute it.

## Voice

- **Write like a journalist reporting news, not a critic weighing articles.** Tell the reader what happened, what was claimed, what the numbers are. Do not describe the article itself.
- Past tense for events. Present tense for ongoing dynamics. Future tense only when actually speculating.
- One thought per sentence. If a sentence has three clauses, it is at least two sentences.
- No "exciting", "huge", "massive", "ground-breaking", "incredible". Skeptical neutral by default.
- Skip the editorial throat-clearing ("It is worth noting that..."; "What's interesting here is..."). State the thing.
- Numbers in numerals (`$2.1B`, `15 minutes`). Years written in full (`2026`, not `'26`).
- No exclamation points.

## Forbidden: meta-commentary about the article

These constructions describe the article instead of reporting its content. They are banned.

- "The piece is technical but the payoff is concrete..."
- "The volume is the story."
- "An eventful month by Lambert's own description..."
- "The piece uses X as the worked example..."
- "This is a careful statistical argument dressed as a cultural essay..."
- "Raschka's coverage is among the clearest explanations of..."
- "The piece does not claim X; it claims Y." (talking about what the article does)

Banned patterns:

- Any sentence whose subject is "the piece", "the post", "the article", "the essay", "the coverage", "the analysis", "the argument", "the take", "this piece", "this post".
- Any sentence that grades the article ("worth reading", "useful", "clearer than most", "among the best", "more useful than most takes").
- Any reference to the writing itself ("dressed as a cultural essay", "technical but concrete", "tight argument", "careful piece").

**Write what the author said or what happened, not how the author said it. The author is a source; you are reporting their claim, not reviewing their prose.**

Examples:

- Bad: "Lambert's companion piece argues that open ecosystems have a compounding property."
- Good: "Lambert argues that open ecosystems compound. Fine-tunes, evals, and tooling built on open weights accumulate publicly, so the marginal cost of the next improvement falls for everyone."

- Bad: "The piece uses China's high-participation release culture as the worked example."
- Good: "China's high-participation release culture is the example Lambert leans on. Gemma 4, DeepSeek V4, Kimi K2.6, MiMo 2.5, and GLM-5.1 all shipped within weeks."

- Bad: "Raschka's coverage is among the clearest explanations of why per-token inference costs have been falling."
- Good: "Raschka traces falling per-token inference costs to three changes: KV cache sharing across layers, multi-head compression, and compressed attention over long contexts."

## Colons: use sparingly

You cannot use the em-dash, so do not now lean on the colon as a pause or pivot. A colon introduces a list, a definition, or a direct quote. It is not a dramatic beat or a "here comes the payoff" reveal.

- Bad: "The piece is technical but the payoff is concrete: these changes are what allow..."
- Bad: "The core issue is verification lag: in science, the feedback loop can take decades."
- Good: Use two sentences. "The core issue is verification lag. In science, the feedback loop can take decades."

If a sentence has more than one colon, rewrite it. If a colon sits between two complete independent clauses, it is almost always wrong; use a period.

## When in doubt

Read the sentence aloud. If you would never say it out loud to a friend, rewrite it. If a semicolon is the answer, use the semicolon. If a sentence would be better as two sentences, make it two sentences.