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2026-05-29 | ✅ Making Our Rulebook a Checklist 🤖

🎙️ What This PR Does

📖 This change tends to our engineering standards document itself rather than to any feature. 🧾 Earlier today a sibling pull request did a five-whys on a review miss and landed on one clear conclusion: there was no explicit final pass that checked the actual changed lines against every written rule before submitting. 🛠️ This pull request turns that conclusion into a standing rule, tightens the wording of the standards so they fit comfortably in working memory, and writes down a cleanup plan for the most common way the codebase currently drifts from its own guidelines.

🎯 There were three jobs. 🥇 The first was to add an instruction to treat the standards document as a checklist after every change. 🥈 The second was to review the document for succinctness and self-coherence so the rules are short, non-contradictory, and easy to hold in mind. 🥉 The third was to study the codebase, find the single most common rule violation, and leave behind a remediation plan that future pull requests can follow.

🧭 A Compliance Checklist At The Top

✅ The standards document now opens with a short compliance section. 🔁 Its first rule says that when a change is complete, you walk the whole document as a checklist and verify your actual changed lines against every rule before submitting, because a green build and passing tests are not the same thing as being done. 🐑 Its second rule says to never let neighboring code override a written rule, and to fix a bad pattern when it happens to sit in the lines you are already touching.

🧠 Placing this at the very top is deliberate. 👀 The strongest signal at authoring time is whatever code sits right next to the cursor, so the antidote is to make the rulebook the first thing seen and the last thing checked.

✂️ Trimming For Working Memory

🪶 The second job was to make the rules shorter without losing any of them. 📚 The document had grown several paragraphs that restated the same idea three different ways or carried long parenthetical examples that were nice to have but heavy to read. 🔧 I shortened the wordiest rules, including the one about never decorating identifiers with mechanism suffixes, the one about removing dead code, the logging guidance, the library-style module design rule, the qualified-imports rule, and the text-to-speech writing rule.

🤝 The goal throughout was self-coherence: every distinct directive survives, just in fewer words. 🚫 No rule was dropped, and no two rules were left contradicting each other. 🪞 A shorter rulebook is a rulebook that actually stays loaded in attention while the work happens, which is the whole point of the checklist rule above it.

🔍 Finding The Most Common Drift

🕵️ The third job was an audit. 📊 I measured how often the codebase breaks each of the style rules and compared the totals. 🏆 The clear winner, by a wide margin, was abbreviated names, which our rules forbid in favor of full words for the sake of legibility.

🔢 The dominant single offender was the shorthand for an error value, which appears about a hundred and eighty times, almost always in the failure arm of an error-handling branch. 📁 The next most frequent were the shorthand for a directory at around a hundred and forty occurrences, followed by shorthand for message, context, and request. 🧮 For comparison, single-letter variables, narrating comments, and banner comments were each far less frequent, so abbreviations are unambiguously the place to start.

🗺️ A Plan For Future Cleanup

📝 Rather than rename hundreds of identifiers in this documentation pull request, I wrote a remediation plan into our specs directory so future pull requests can clean up in safe, reviewable steps. 🪜 The plan proposes one pull request per abbreviation class, starting with the error shorthand because it is both the most common and the most mechanical. 🧱 Each step is a pure rename that changes no behavior, leans on the existing test suite as its safety net, runs the linter, and ships its own blog post.

⚠️ The plan also records one sharp gotcha. 🚧 In our Haskell code the error shorthand cannot simply expand to the word error, because that word is already a built-in function that crashes the program. 🏷️ So the plan recommends expanding it to a name like failure, or better yet to a domain-specific name such as parse failure or HTTP failure where the surrounding code already knows what kind of thing went wrong.

🧪 Verifying The Change

🔬 This pull request only edits documentation: the standards file, a new plan in the specs directory, and this post. 🟢 There is no code change to build or test, so the existing build and test suites are unaffected. ✅ Most importantly, I ran the new rule on myself and walked the whole standards document as a checklist against these edits before submitting, which is exactly the habit this change is meant to install.

📚 Book Recommendations

📖 Similar

• The Checklist Manifesto by Atul Gawande is relevant because its central claim, that even experts need explicit checklists to avoid predictable mistakes, is precisely the habit this change writes into our standards.
• 🦢 The Elements of Style by William Strunk and E. B. White is relevant because its famous instruction to omit needless words is exactly what the succinctness pass over the rulebook tried to honor.

↔️ Contrasting

• The Pragmatic Programmer by Andrew Hunt and David Thomas offers a contrasting emphasis on trusting seasoned judgment and broad principles over rigid checklists, which pushes back gently on leaning so hard on a literal rule-by-rule pass.

🔗 Related

• 🧼💾 Clean Code: A Handbook of Agile Software Craftsmanship by Robert C. Martin is related because its long argument for intention-revealing names is the very principle behind banning abbreviations, which this audit found to be our most common drift.