How the checklists learn
The five checklists are living documents. Each study exposes what an item missed, got wrong, or stated too generically — and the fix queues for the next study. This is the practice compounding, in public.
PabraiPabrai checklist v0.5.0
Added P81 (un-bounded off-balance-sheet legal/compensation tail): a death- or injury-linked liability with an open-ended compensation process and a provision small relative to the plausible claim universe is a fail — un-bounded permanent…
ProcessGovernance/compensation added to the source gate
7564 Workman (study #1).
ProcessStale-tag guard at the stamp step
4676 Fuji Media (study #3).
BuffettBuffett checklist v0.3.0
B7 reframed from a process-order self-report into an agent-verifiable output audit (does the intrinsic-value derivation reference the current price before stating value?).
BuffettBuffett checklist v0.2.0
Expanded 6 → 104 items via corpus extraction (partnership letters 1957–70; shareholder letters 1977–2023; Owner's Manual), practitioner-directed flat expansion.
BuffettBuffett checklist v0.1.0
Seeded with 6 items (B1–B6) from Berkshire shareholder letters (owner earnings, one-dollar test, circle of competence) and Buffett partnership letters (Graham bargain heritage).
MungerMunger checklist v0.3.0
Eight analyst-psychology self-checks tagged [PRACTITIONER] (M62, M63, M64, M69, M72, M75, M79, M80 — items auditing the analyst's own psychology; items auditing the company's psychology stay untagged); agent proxies added to M69 (blank-p…
MungerMunger checklist v0.2.0
Expanded 6 → 103 items via corpus extraction (Poor Charlie's Almanack talks + Investing Principles Checklist; The Psychology of Human Misjudgment; Wesco/Daily Journal Q&As and speeches), practitioner-directed flat expansion.
MungerMunger checklist v0.1.0
Seeded with 6 items (M1–M6) from Poor Charlie's Almanack talks, "The Psychology of Human Misjudgment", and "Elementary Worldly Wisdom".
PabraiPabrai checklist v0.4.0
Near-duplicate merges: P51's five-sentence articulation constraint folded into P50's Asks; P21/P22's maturity-coverage checks folded into P20's Good as a two-part standard (Delta Financial, "bankrupt December 2007", preserved; P21/P22 so…
PabraiPabrai checklist v0.3.0
Expanded 6 → 80 items via corpus extraction (The Dhandho Investor; Mosaic: Perspectives on Investing; lectures/Chai with Pabrai; documented checklist-project accounts in The Checklist Manifesto and Spier's The Education of a Value Invest…
PabraiPabrai checklist v0.2.0
P1 amended: explicit rule that an equity cushion is not an asset floor — book net assets are not downside protection; the floor comes from the stress test only.
PabraiPabrai checklist v0.1.0
Seeded with 6 items (P1–P6) from The Dhandho Investor and Pabrai's public lectures/interviews.
Li LuLi Lu checklist v0.3.0
Scuttlebutt reframes: L53's operative channels restricted to public records (press archives, public litigation records, proxy/registry board-network mapping) and tagged [PRACTITIONER] for any judgment beyond public records — the communit…
Li LuLi Lu checklist v0.2.0
Expanded 6 → 59 items via corpus extraction (Columbia lectures 2006/2010; Peking University talks 2015/2019; Civilization, Modernization, Value Investing and China; Li Lu–Greenwald conversation 2021), practitioner-directed flat expansion.
Li LuLi Lu checklist v0.1.0
Seeded with 6 items (L1–L6) from Li Lu's Columbia lectures, published talks and essays on value investing in Asia.
ClaudeClaude checklist v0.3.0
Stage-4 boundary violations removed: the frontmatter lens line rescoped to this profile's own work (base rates, unit economics, disconfirming evidence, epistemic limits) and the preamble sentence claiming cross-lens disagreement duties d…
ClaudeClaude checklist v0.2.0
Expanded 6 → 102 items, practitioner-directed flat expansion.
ClaudeClaude checklist v0.1.0
Seeded with 6 items (C1–C6) reasoning from first principles (base rates, unit economics, disconfirming evidence, epistemic limits, Japan market structure).