DANYLO PRAVDAHUB
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№ 02 — COURSE · REFERENCE

The Factory Brain

98 lessons

Everything a month of real sessions taught, sorted so a fresh repo can look it up. 98 references across eleven subjects, 3,030 lines that each name the repo and date behind them, mined from 4,352 stripped transcripts. Not a read-through: open the index for a subject, then the one file your task needs.

WHAT YOU WILL BE ABLE TO DO

  • 01Look up what this machine already learned before losing the same day twice
  • 02Start a fresh repo with a month of scars it never lived through
  • 03Trace any line back to the repo and date that produced it

This is not a course you read front to back. It is the mined memory of every session between 2026-07-07 and 2026-08-08, sorted into eleven subjects so it can be looked up.

Each subject opens with a where to look index: what each reference owns, and the five most expensive lessons in that subject. Then one reference per file. Every substantive line carries src: repo@date, so anything here can be traced back to the session that produced it.

Ninety percent of these lines come from repos other than this one. That is the point. The lesson that cost a day in one product is free in the next one.

Read the wasted loops first if you read anything: they are the afternoons that produced nothing, and each one names the tell that was visible before the cost was paid.

LESSONS

  1. 01Wasted loops: where to look🔒 FREE ACCOUNT
  2. 02False green: when your proof is not proof🔒 FREE ACCOUNT
  3. 03Benchmarks, probes, and irreversible resources🔒 FREE ACCOUNT
  4. 04Model routing, fan-out, and quota🔒 FREE ACCOUNT
  5. 05Case stories🔒 FREE ACCOUNT
  6. 06Scope, overbuilding, and owner corrections🔒 FREE ACCOUNT
  7. 07Shared trees, gates, and processes on this machine🔒 FREE ACCOUNT
  8. 08Stopping, pausing, and owner gates🔒 FREE ACCOUNT
  9. 09Testing and verification: where to look🔒 FREE ACCOUNT
  10. 10Benchmarks, A/Bs & Judges🔒 FREE ACCOUNT
  11. 11Data, Query & Analysis Verification🔒 FREE ACCOUNT
  12. 12False Green🔒 FREE ACCOUNT
  13. 13Repo Gates & Commit Mechanics🔒 FREE ACCOUNT
  14. 14Harness, Flakes & Environment🔒 FREE ACCOUNT
  15. 15Numbers & Claims🔒 FREE ACCOUNT
  16. 16Production Proof🔒 FREE ACCOUNT
  17. 17Agent traps: where to look🔒 FREE ACCOUNT
  18. 18Agent discipline🔒 FREE ACCOUNT
  19. 19Model routing and wrapper🔒 FREE ACCOUNT
  20. 20Platform gotchas🔒 FREE ACCOUNT
  21. 21Prod breakers: boundaries, gates, data🔒 FREE ACCOUNT
  22. 22Prod breakers: render, job state, models🔒 FREE ACCOUNT
  23. 23Quota and context🔒 FREE ACCOUNT
  24. 24Source fidelity🔒 FREE ACCOUNT
  25. 25Verification lies: browser probes and counting faults🔒 FREE ACCOUNT
  26. 26Verification lies: core law and false-green tests🔒 FREE ACCOUNT
  27. 27Verification lies: regex probes and shell pipelines🔒 FREE ACCOUNT
  28. 28Verification lies: trusting the wrong source of truth🔒 FREE ACCOUNT
  29. 29This machine: where to look🔒 FREE ACCOUNT
  30. 30Agent browser and CDP🔒 FREE ACCOUNT
  31. 31Deploy, prod verification, and external services🔒 FREE ACCOUNT
  32. 32Git, shared trees, and commit gates🔒 FREE ACCOUNT
  33. 33LLM routing, quota, and the local rails🔒 FREE ACCOUNT
  34. 34Ports, processes, and killing things🔒 FREE ACCOUNT
  35. 35Windows shell, paths, encodings🔒 FREE ACCOUNT
  36. 36Workers, NSSM services, scheduled tasks🔒 FREE ACCOUNT
  37. 37Vercel and Neon: where to look🔒 FREE ACCOUNT
  38. 38Cost, quota, fleet inventory🔒 FREE ACCOUNT
  39. 39Deploy is not done🔒 FREE ACCOUNT
  40. 40Deploy order and migrations🔒 FREE ACCOUNT
  41. 41Env vars, secrets, provisioning🔒 FREE ACCOUNT
  42. 42Vercel platform limits and route gotchas🔒 FREE ACCOUNT
  43. 43Prod data, local writes, Blob🔒 FREE ACCOUNT
  44. 44Workflow: where to look🔒 FREE ACCOUNT
  45. 45Client Delivery, Ownership, and Money🔒 FREE ACCOUNT
  46. 46Concurrent Sessions and the Shared Tree🔒 FREE ACCOUNT
  47. 47Context Injection, Quota, and Model Routing🔒 FREE ACCOUNT
  48. 48Docs, Specs, and Decision Records🔒 FREE ACCOUNT
  49. 49Git Gates and Commits🔒 FREE ACCOUNT
  50. 50Production Safety and Live Verification🔒 FREE ACCOUNT
  51. 51Stop Hook, AFK Law, Signet, Handoff🔒 FREE ACCOUNT
  52. 52Tooling verdicts: where to look🔒 FREE ACCOUNT
  53. 53Clerk, auth E2E, analytics and consoles🔒 FREE ACCOUNT
  54. 54DuckDB, chain/RPC, scrapers, media🔒 FREE ACCOUNT
  55. 55Third-party services and vendor verdicts🔒 FREE ACCOUNT
  56. 56Commit gates, test runners, packaging🔒 FREE ACCOUNT
  57. 57commonplace, graphify, firecrawl, MCP🔒 FREE ACCOUNT
  58. 58Models, routers, wrappers, quota🔒 FREE ACCOUNT
  59. 59Next.js, React, Vercel, Drizzle, Tailwind🔒 FREE ACCOUNT
  60. 60Architecture patterns: where to look🔒 FREE ACCOUNT
  61. 61Append-only stores, supersession, derived artifacts🔒 FREE ACCOUNT
  62. 62Benchmarks, graph quality, fill/PnL validation, figure audits🔒 FREE ACCOUNT
  63. 63Queries, metrics, byte-truth, provenance🔒 FREE ACCOUNT
  64. 64Containment escapes and guard placement🔒 FREE ACCOUNT
  65. 65Fail-closed vs fail-open, scrub and secret tiers🔒 FREE ACCOUNT
  66. 66Money, wallets, spend caps🔒 FREE ACCOUNT
  67. 67Chaos drills, reconciliation, build order, guard architecture🔒 FREE ACCOUNT
  68. 68Deploy, rollback, health checks, forensics🔒 FREE ACCOUNT
  69. 69Queues, leases, workers, wake🔒 FREE ACCOUNT
  70. 70Design: where to look🔒 FREE ACCOUNT
  71. 71Charts, measures and graph views🔒 FREE ACCOUNT
  72. 72Honesty: numbers, absence, claims, status🔒 FREE ACCOUNT
  73. 73Landing, cold users, product copy🔒 FREE ACCOUNT
  74. 74Layout, mobile, contrast, hit targets🔒 FREE ACCOUNT
  75. 75Replay Honesty, Masking, and Deriving🔒 FREE ACCOUNT
  76. 76Replay Mode Split and Cold-Visitor Landing🔒 FREE ACCOUNT
  77. 77Replay Player, Timing, and Layout🔒 FREE ACCOUNT
  78. 78Reusable assets: where to look🔒 FREE ACCOUNT
  79. 79Asset Traps🔒 FREE ACCOUNT
  80. 80Gates, Checks, Sabotage Harnesses, Benchmarks🔒 FREE ACCOUNT
  81. 81Hermes Roles and Profile Generation🔒 FREE ACCOUNT
  82. 82Browser, Screenshot, and Auth Rigs🔒 FREE ACCOUNT
  83. 83Dossiers, Reports, HTML Artifacts🔒 FREE ACCOUNT
  84. 84Fixtures and Generators🔒 FREE ACCOUNT
  85. 85Ops and Intent Docs🔒 FREE ACCOUNT
  86. 86Hub Showcase Contract🔒 FREE ACCOUNT
  87. 87Third-Party and Bench Corpus Source Map🔒 FREE ACCOUNT
  88. 88Web and UI Modules🔒 FREE ACCOUNT
  89. 89Corpus, Banks, Generation Pipelines🔒 FREE ACCOUNT
  90. 90Commonplace Engine Internals and On-Disk Data Paths🔒 FREE ACCOUNT
  91. 91Model Gateways, Queues, Atomic Writes🔒 FREE ACCOUNT
  92. 92Client add-ons: where to look🔒 FREE ACCOUNT
  93. 93Addon Catalog, What Already Exists🔒 FREE ACCOUNT
  94. 94Client Journey, Invite, Trial, Demo, Wake🔒 FREE ACCOUNT
  95. 95Fleet, Router, and Agent Infrastructure🔒 FREE ACCOUNT
  96. 96Honest Surfaces🔒 FREE ACCOUNT
  97. 97Money, Caps, and Quota🔒 FREE ACCOUNT
  98. 98Proof and Verification🔒 FREE ACCOUNT
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