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
2026-06-22
Digest model
claude-sonnet-4-6 · 43,439 in · 4,967 out
Roundup model
claude-haiku-4-5-20251001 · alias claude-haiku-4-5 · 41,855 in · 9,719 out
Sources
54/104 ok · 18 failed · 0 blocked · 32 empty
Items
122 fetched · 122 sent to LLM
Duration
330.8 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
122
items after dedup · 117.3% of previous · 117.3% of start
Considered
122
reached an LLM · 100.0% of previous · 117.3% 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

54 ok 32 empty 18 failed 0 blocked
Source Status Items ms Notes
Marginal Revolution (Tyler Cowen) ok 12 267
STAT News ok 12 209
r/MachineLearning ok 12 785
Dwarkesh Patel (YouTube) ok 8 1496
Hacker News (front page) ok 8 1723
Simon Willison ok 6 102
Latent Space ok 4 113
Y Combinator (YouTube) ok 4 1388
Sabine Hossenfelder ok 4 1506
Cloudflare Blog ok 3 221
a16z News ok 3 194
Patrick Boyle ok 3 1510
Noahpinion (Noah Smith) ok 3 398
a16z (YouTube) ok 3 1613
OpenAI News ok-discovered 2 2081
Mo Bitar (YouTube) ok-discovered 2 2893
Maxinomics ok 2 1348
Works in Progress ok 2 537
Interconnects (Nathan Lambert) ok 1 226
Eugene Yan ok 1 72
The Pragmatic Engineer ok 1 274
Fly.io Blog ok 1 242
Stripe Engineering ok-html-fallback 1 2027
Vercel Blog ok 1 648
Conversable Economist (Timothy Taylor) ok 1 52
Discord Engineering ok-html-fallback 1 1736
Not Boring (Packy McCormick) ok 1 213
The Generalist (Mario Gabriele) ok 1 271
Hunter Walk ok 1 122
Bessemer Atlas ok-html-fallback 1 2970
Two Minute Papers ok 1 1339
Acquired ok 1 209
AI Explained ok 1 13
Kyla Scanlon ok 1 1501
Fireship ok 1 1499
DeepLearningAI ok 1 1511
CodeEmporium ok 1 1593
Rowan Cheung ok 1 1645
Practical Engineering ok 1 1416
3Blue1Brown ok 1 1500
Hannah Fry ok 1 1511
Net Interest (Marc Rubinstein) ok 1 115
Bank Underground (Bank of England) ok 1 146
Hugging Face Blog ok 1 152
Dwarkesh Patel ok 1 182
The Ezra Klein Show ok 1 320
Astral Codex Ten (Scott Alexander) ok 1 136
Artificial Analysis ok-html-fallback 0 2438
Shopify Engineering ok-html-fallback 0 2420
LangChain Blog ok-html-fallback 0 1939
Out-Of-Pocket ok-html-fallback 0 1788
Asimov Press ok-html-fallback 0 1782
Andrej Karpathy (GitHub) ok-html-fallback 0 2373
Liberty Street Economics (NY Fed) ok 0 25524
Sebastian Raschka no-items 0 216
Chip Huyen no-items 0 288
Alpha Signal html-error 0 1544 Request failed with error code 403
The Batch (deeplearning.ai) html-error 0 1651 Request failed with error code 403
Google AI / DeepMind no-items 0 177
Data Science Weekly rss-error 0 2033 Request failed with error code 403
PostHog Engineering no-items 0 568
All Things Distributed (Werner Vogels) no-items 0 214
Kwokchain (Kevin Kwok) no-items 0 90
Tomasz Tunguz no-items 0 171
Above the Crowd (Bill Gurley) no-items 0 124
Elad Gil no-items 0 1734
Sequoia Capital no-items 0 148
AVC (Fred Wilson) no-items 0 1976
Anthropic News no-items 0 10323
Fierce Pharma no-items 0 102
Fierce Biotech no-items 0 138
Health Tech Nerds no-items 0 2098
In The Pipeline (Derek Lowe) html-error 0 2006 Request failed with error code 403
Ground Truths (Eric Topol) rss-error 0 2081 Request failed with error code 403
Rock Health Insights no-items 0 337
Andrej Karpathy (YouTube) no-items 0 170
Decoding Bio rss-error 0 2044 Request failed with error code 403
Yannic Kilcher no-items 0 1292
Robert Wachter rss-error 0 2036 Request failed with error code 403
r/LLMDevs rss-error 0 2789 Request failed with error code 429
r/ClaudeAI rss-error 0 2782 Request failed with error code 429
r/LocalLLaMA rss-error 0 3496 Request failed with error code 429
r/ExperiencedDevs rss-error 0 2282 Request failed with error code 429
r/biotech rss-error 0 2998 Request failed with error code 429
r/medicine rss-error 0 2997 Request failed with error code 429
r/devops rss-error 0 3005 Request failed with error code 429
r/pharmacy rss-error 0 3008 Request failed with error code 429
r/pharmaindustry rss-error 0 3017 Request failed with error code 429
r/biotechnology rss-error 0 3017 Request failed with error code 429
Ben Felix no-items 0 1500
Internet of Bugs no-items 0 1515
Anthropic (YouTube) no-items 0 1503
The Robot Brains Podcast no-items 0 1570
Money & Macro no-items 0 1595
Neural Breakdown with AVB no-items 0 1525
Bits about Money (Patrick McKenzie) no-items 0 240
Apricitas Economics (Joseph Politano) no-items 0 127
Lilian Weng no-items 0 89
Google Research Blog no-items 0 282
Meta AI Research no-items 0 965
Klement on Investing rss-error 0 2051 Request failed with error code 403
Dan Luu no-items 0 430
Brendan Gregg no-items 0 489
Made of Bugs (Nelson Elhage) no-items 0 419

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.