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DELIVERY: two gates, both from barakoBrew this week - #20

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DELIVERY: two gates, both from barakoBrew this week#20
arnelirobles wants to merge 3 commits into
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delivery-hidden-steps

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@arnelirobles arnelirobles commented Sep 8, 2026

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Two entries at the end of "The gates, and what each one caught". No other section touched.

A step that fails hides every step behind it

Lint, typecheck and unit tests were three sequential steps in one CI job. ESLint had no path argument and the config never excluded docs/, so it read the vendored design prototypes and found two errors in files that say nothing about the codebase. The two steps behind it were skipped in all six runs. The setup pull request was closed the next day and not revived, so the repository has had no .github/ at all since: no CI, no CodeQL, no Dependabot, no templates.

What the concealment cost, found four days later by running the two skipped commands by hand: master's unit suite does not pass. A test that read the API's C# enum out of a sibling checkout, to hold the console's status list against the server's, broke at the split when that file moved one directory deeper. Nothing has executed it since. The gate against a status diverging between the two halves of the product was itself broken from the moment there were two halves.

Two smaller observations folded in: GitHub keeps a workflow registration after the branch that introduced it is abandoned, so the Actions tab listed CI and CodeQL the whole time and reads identically whether or not the file is on master. And the lint scope was the actual defect, because a gate pointed at vendored reference material fails for reasons that say nothing about the code, and the second time it does that somebody turns the gate off rather than the scope down.

Every gate here reads text, and half of what an agent produces is not text

Requested after the first entry, and it turned out to be live in the same pull request.

Every gate in this document reads a diff. The nine regenerated design screenshots in barakoBrew each carried a 5,758 byte C2PA provenance manifest naming the tool that generated them. Six CI jobs were green over them, including an axe pass and a full unmocked run of the console against a real API, because nothing in that suite can see inside a PNG. Found by pointing a byte-level scanner at the tree, and fixed before merge only because the pull request happened to be blocked rather than queued.

The section cites section 9 of the lean agent method for the earlier and worse instance, fourteen published packages one merge from shipping signed manifests to a public registry, and for the three rules: gate the bytes, filter rather than re-encode so the image hash survives, and scan the whole repository rather than the diff.

Fixed in BaryoDev/barakoBrew#57, which now vendors that scanner and runs it as a CI step over the whole tree.

Lint, typecheck and tests as sequential steps in one job: the first failure decided what
anybody learned, the two steps behind it never reported, and the setup was closed the day
after it opened over a one-line ignore. Four days later the two skipped commands were run by
hand and master's unit suite did not pass.
@arnelirobles arnelirobles self-assigned this Sep 8, 2026
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Walkthrough

The pull request adds a DELIVERY.md gate section about sequential CI failures. It documents how an early lint failure can skip typecheck and unit tests, citing the barakoBrew incident.

Changes

CI gate documentation

Layer / File(s) Summary
Document failure visibility
DELIVERY.md
Adds guidance that sequential lint, typecheck, and test steps can hide later failures. Documents the barakoBrew incident and its CI consequences.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: 🔵 Low · up to adc0e

The new CI-incident documentation contains an unlabeled code fence that can fail Markdown lint and block documentation validation until it is labeled.

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title is related to the documented barakoBrew CI incident and the gates discussed. It is somewhat broader than the change because the pull request adds one gate entry, not two separate gates.
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Actionable comments posted: 1

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only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
In `@DELIVERY.md`:
- Line 411: Update the fenced code block near the existing empty fence so its
opening fence declares the text language identifier, satisfying markdownlint
rule MD040 while preserving the block content.

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Comment thread DELIVERY.md Outdated
… text

Agent-generated images arrive carrying a signed manifest naming the tool that made them, and
every gate here reads a diff, so nothing can see it. Caught twice now: fourteen published
packages one merge from shipping it, and nine barakoBrew screenshots at 5,758 bytes each
under six green CI jobs.

Cites section 9 of lean-agent-method for the scanner and the do-not-re-encode rule.
@arnelirobles arnelirobles changed the title DELIVERY: a step that fails hides every step behind it DELIVERY: two gates, both from barakoBrew this week Sep 8, 2026
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