Citation ledger
Every external source cited across all twelve weeks, tagged as primary or authoritative — or flagged plainly when it isn't — with the reasoning stated alongside each one.
A course that spends twelve weeks arguing that finishing things properly matters shouldn't ask a visitor to just trust that its own citations are solid. Every source linked from a lecture is listed here, grouped by week, tagged by what kind of source it actually is, with the one-line reasoning for that tag written down rather than left implicit. Where a source doesn't clear that bar, it's tagged secondary and said so plainly, not quietly upgraded to look more authoritative than it is.
26 sources across 12 lectures · 23 primary or authoritative · 3 flagged secondary
Week 1: Done Enough to Demo, Nowhere Near Shipped22 February 2027
- Jon Bentley, "Programming Pearls: Bumper-Sticker Computer Science" (Communications of the ACM, Sept. 1985) — the column that popularised the ninety-ninety rule, written by its authorOriginal work by its author
Bentley's own column, in his own words, introducing the ninety-ninety rule — not a summary of it by someone else.
- Duke Nukem Forever: What Happened? (Matt McMuscles)Secondary — flagged
A third-party YouTube retrospective, not the developers' own account — kept as this week's illustrative case, not as authoritative evidence for the claim.
Week 2: The Last Customer Costs More Than All the Others Combined1 March 2027
- NTCA: Rural Broadband Economics — A Review of Rural SubsidiesPrimary organisation
NTCA is the rural telecom industry's own trade association, publishing its own economic analysis of rural broadband subsidy costs.
Week 3: All But the Dissertation8 March 2027
- Council of Graduate Schools: Ph.D. Completion ProjectPrimary organisation
The Council of Graduate Schools is the primary national body tracking PhD completion, publishing its own completion-project data.
Week 4: The Bathroom Is the Real Menu15 March 2027
- Survey: dirty restaurant bathrooms cost 80% of repeat dinersSecondary — flagged
A customer-feedback vendor's marketing blog citing an uncredited survey stat with no named underlying study — kept as an illustrative figure, not authoritative evidence.
Week 5: The Filing You Didn't Make Is the Only One That Matters22 March 2027
- Texas Lawyers' Insurance Exchange: Scheduling Errors and Legal MalpracticePrimary organisation
TLIE is a malpractice insurer publishing its own resource on the risk it underwrites and pays out on.
- Jarvis & Vollweiler, Legal Malpractice in Florida: A Statistical Profile, St. Mary's Journal on Legal Malpractice & Ethics 14(2) (2024)Citable material
Original legal-scholarship research by its named authors, built on 1,000 hours mining Florida's own malpractice-claims database — law-review editing isn't blind peer review, but this is the same class of citable original academic work.
- The Florida Bar: New NSU Law study reveals legal malpractice trends in FloridaPrimary organisation
The Florida Bar is a state bar association — the same category as the ABA example in CLAUDE.md's sourcing rule — reporting via its own news channel.
Week 6: Ship It, Then Pay the Hundred-x29 March 2027
Reputable, non-collaborative tech journalism conducting its own citation-tracing investigation into Wayne and Bossavit's research, not merely repeating someone else's essay — CLAUDE.md's fourth, 'similarly citable material' category.
- NIST Planning Report 02-3: The Economic Impacts of Inadequate Infrastructure for Software Testing (2002)Primary organisation
NIST is the US government's own standards body, publishing its own economic-impact report.
- Laurent Bossavit, The Leprechauns of Software EngineeringOriginal work by its author
The book itself, by the researcher who did the citation-tracing work — a primary account, not journalism about it.
- Mike Cohn: The Cost of Change Curve Is Outdated (Mountain Goat Software)Original work by its author
An original essay by its actual author, a named software-process authority, making a specific argued case.
- Mooncamp: Cost of Quality (COQ) glossary entry, citing ASQSecondary — flagged
ASQ's own page returned HTTP 403 to every automated check (not confirmed bot-friendly), so this quotes and attributes the figure to ASQ one step removed rather than first-hand — flagged honestly as secondary, not upgraded to look primary.
The peer-reviewed paper itself, not a summary of it — IEEE Computer Society's own published record.
The original peer-reviewed investigation, IEEE's own published record of it.
- ESA: Ariane 501 — Presentation of Inquiry Board reportPrimary organisation
The European Space Agency's own account of its own Inquiry Board's findings.
- NASA: Mars Climate Orbiter Mishap Investigation Board Phase I ReportPrimary organisation
NASA's own Lessons Learned Information System hosting its own investigation board's report.
- US House Committee on Transportation and Infrastructure: Final Committee Report on the Boeing 737 MAXPrimary organisation
The US House committee's own final report from its own 18-month investigation.
A peer-reviewed conference paper from the American Society for Engineering Education, formalising the prevention/appraisal/failure cost-of-quality model.
- Toyota Motor Corporation: Toyota Production System — jidokaPrimary organisation
Toyota's own official global site describing its own production system in its own words.
Week 7: The Handover Slide Deck Is Not the Handover19 April 2027
- NASA Mishap Investigation Board: Mars Climate Orbiter Phase I ReportPrimary organisation
NASA's own official mishap investigation board report into its own mission failure — CLAUDE.md's own named example of a primary organisation.
Week 8: The Round You Need Is the Round You Just Missed26 April 2027
- CB Insights: The Venture Capital FunnelPrimary organisation
CB Insights is the market-research firm that compiled and published this venture-funnel data itself, not a third party summarising someone else's study.
Week 9: Ninety-Eight Percent Done Is a Different Building Than One Hundred3 May 2027
- Procore: Certificate of Occupancy Explained for ConstructionCitable material
Procore is the construction industry's most widely used project-management platform; this is its own practitioner-authored explainer of how occupancy inspections and gating actually work, used here for procedural facts rather than a contested statistic.
Week 10: Final Approach Is Five Percent of the Flight and Half the Risk10 May 2027
- Boeing: Statistical Summary of Commercial Jet Airplane AccidentsPrimary organisation
Boeing's own official annual accident-statistics publication — CLAUDE.md's own named example of a primary organisation.
Week 11: The Feature That Finishes Itself Into Irrelevance17 May 2027
- Richard P. Gabriel: The Rise of "Worse Is Better"Original work by its author
Gabriel's own essay, in his own words, making and later reflecting on his own argument — the primary text this week is built around.
Week 12: Which Last Mile Have You Actually Hit24 May 2027
A peer-reviewed meta-analysis published in a Nature-family journal.