The class logbook
The Latest
Everything published on the site, day by day, newest first: guides, analysis, essays and quick thoughts in one running log. The shelves for browsing are elsewhere; this is where you see what is new.
The log
Entries 1–14 of 14
2 entries
AI Workflow Baseline: What Time Saved Actually Means
Build an AI workflow baseline that counts setup, review and repair, separates elapsed time from human effort, and keeps the task mix comparable.11 min readAI workflow baselineagent evaluation
1 entry
Teach Claude the Difference Between Blank and Zero
A blank sales figure can mean “not reported yet.” Zero can mean “reported, with no sales.” Combining them makes a complete-looking report less truthful.Quick thoughtclaude-codedata-quality1 entry
Measure the Cost of an Accepted Result
The cheapest Claude Code session can be the expensive one if its output takes another hour to repair. Compare accepted results, not just token totals.Quick thoughtclaude-codecost2 entries
Make Claude Preserve the Meaning of a CSV
A customer number such as 00127 is an identifier. Turning it into 127 can break a perfectly tidy spreadsheet export.Quick thoughtclaude-codedata-qualityWhy AI Agents Don't Dissolve the Firm
Ronald Coase asked in 1937 why firms exist instead of markets. AI agents revive the question — and the old answer says the firm concentrates, not dissolves.13 min readzeo-theoryorganization-theory
5 entries
Clean a Messy Customer List With Claude Code — and Prove Nothing Was Lost
Every business has one: the customer list that lives half in a spreadsheet, half in an inbox, and half in someone's head. Here is how to clean it in about twenty minutes, and — the part nobody teaches — how to prove the cleaning did not quietly drop forty rows.12 min readpracticeclaude-code
Price the Agent Work You Can Verify
Compare agent workflows by usable output, review time and the cost of the decision you are making. A token average alone cannot tell you what to build, route or keep running.8 min readzeo-theorycontrolling
What Claude Code Actually Changes — and What It Doesn't
Claude Code can shorten implementation while adding review and recovery work. Use four delegation habits and a whole-task timing check to decide whether an agent improves the work you hand over.10 min readclaude-codeverification
When Can You Actually Walk Away?
Choose an agent task you can verify, bound its effects, and plan the handover. A practical delegation grid, six operating modes, and checks that can miss the real failure.10 min readclaude-codeharness-engineering
Your Chat History Is Not a System of Record
Make agent work resumable from records: capture decisions, source revisions, test evidence and unresolved effects, then check whether another session can continue safely.10 min readclaude-codeharness-engineering
1 entry
What Is a Zero-Employee Organization?
A Zero-Employee Organization is a firm where headcount is no longer the unit of scale. Here is the definition, the eleven-theory audit behind it, and the finding that only four verdicts survived being checked three times.11 min readzeoorganization-theory
1 entry
Budget the Coordination Before Adding a Team
A team is useful when separate investigations or implementations can proceed at the same time. A long dependency chain does not become parallel because you…Quick thoughtclaude-codeeconomics1 entry
Choose the Subagent Model Against the Task
Finding a filename and explaining a token-refresh failure are different tasks, even if both start by searching the same repository.Quick thoughtclaude-codeeconomicsThat is the first entry in the log.
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