EGM review of the sharded bundle catalog plan

An Elephant-and-Goldfish Model review, run on 2026-10-28 in consolidated mode over all five stages, of the first draft of sharded-bundle-catalog-plan.md. That draft was never committed: the line numbers in these reports refer to it, and the plan on main is the second revision the review led to.

stage	report
5, initial zoom out	zoom_out_report.md
6, comprehension	comprehension_report.md
7, critic (design, structural, style)	critic_report.md
8, intermediate zoom out	intermediate_zoom_out_report.md
9, implementation readiness (readiness, codebase details, style)	implementation_readiness_report.md
all five, merged into 5 blockers, 10 majors and 6 nit groups	consolidated_review_report.md

What came of it:

• The specification's fifth revision settled the contradictions the review found (PR #222): CDN revalidation on a short TTL, each partial's cut_from, an index builder that reads every manifest, and an interrupted release leaving the staged index current.
• The plan was rewritten at a smaller horizon: Phases 1 to 3 in full, 4 to 6 as contracts and gating tests, 7 to 9 as outlines (PR #225).
• Phase 1 was built and released in sdmxlib 0.76.0: GH-221, GH-223, GH-224 and GH-228, with the tier-3 measurement (GH-185).

The reports are kept as written, so their findings describe the first draft.

Drift report on the EGM contracts

2026-10-28_DRIFT_REPORT.md compares the 23 EGM.md contracts the EGM bootstrap wrote with the code, before their first commit. Six reviewers found about 110 differences; the contracts were corrected from them, and four findings that point at the code were filed as GH-262, GH-263, GH-264 and GH-265.

Drift report on the design documents

2026-10-28_DESIGN_DRIFT_REPORT.md labels the 21 documents in docs/design/ (current, evidence or superseded) and lists what each said that the code contradicts, for GH-267. The documents were corrected from it, their dated sections moved to docs/design/evidence/, and the rejected explorations to history/design/. Two findings point at the code: GH-271 and GH-272.

Review of the plan's third revision

sharded-catalog-replan/ holds the review of the third revision, which re-planned Phases 4 to 9 against the specification's sixth revision (GH-333), and records what the revision changed from it.