The diff adds one new intake YAML under proposals/ and an append-only entry in docs/DECISIONS.md; it touches no content/ records, no published assessments, and not AGENTS.md. The 78 decision rows I counted in the file match the count stated in the PR body, and each row preserves exact provenance: the source commit ab698546200770ac95612af49f5056d30fd6f21b, the original markdown ref with anchor (e.g. proposals/agenda/2026-08-31-agenda-33432478115/megalithic-casting.md#proposal-1), plus runId, model, promptVersion, and date, with the verbatim original record nested under `legacy.record`. Unavailable metadata (inputHash, candidateHash, generatedAt, caseBasis, recordId) is left explicitly null rather than invented, satisfying §3.8's prohibition on fabricated locators. No citation identifiers were added, so the verification section is empty and there is nothing to check for fabrication; the copied proposals are labeled `stage: agenda-proposal`, `decision: proposed`, with the generating model named, so nothing is presented as ratified or human (§3.15). Nothing here removes provenance, weakens CI or the ratification gates, or exposes confidential geo-project material. The one mild oddity — the body's reference to '195 decision identities across the three smaller batches' when only one batch is present — is a claim about sibling PRs, not a defect in what is being added here.

The change adds an append-only staging copy of 78 agenda proposals without removing or altering the authoritative historical files. Each record is explicitly marked `stage: agenda-proposal` and `decision: proposed`, and carries a date, runId, model, promptVersion, commit-pinned legacy reference, and original path anchor, so it is not presented as a ratified or human judgment. Missing receipts and hashes remain explicitly null rather than being invented, while the documentation accurately describes them as unknown. No AGENTS.md edit, confidence material, assessment rewrite, check weakening, or added content citation requiring mechanical verification appears in the diff.

The pull request stages a batch of 78 historical agenda proposals into an immutable intake record under proposals/intake/ and logs the architectural rationale in docs/DECISIONS.md. It does not modify AGENTS.md, touch content/ records, or publish any unratified editorial claims as ratified conclusions. All entries preserve original run, model, prompt, and git provenance references without fabrication or weakening of existing constitutional gates.

The diff adds only an append-only DECISIONS.md note describing a staged historical migration for review, plus one intake YAML that copies 78 prior agenda proposals. Each decision is labeled stage agenda-proposal / decision proposed, retains runId/model/promptVersion, points at the original Markdown ref, and nests a legacy block with the stated commit locator ab698546…; missing receipts stay null/unknown. No content/ research claims, assessments, sources, or citations are added (citation verification empty), AGENTS.md is untouched, and the PR text states existing stores remain authoritative with no reader/writer or UI cutover. This is staging of historical copies under honest provenance, not a new unilateral judgment or check-weakening change.

The change is purely additive: it stages 78 historical agenda-proposal records in an immutable intake YAML plus an append-only DECISIONS.md note, with no edits to AGENTS.md, no UI/research/assessment changes, and no gate or CI modification visible in the diff. Provenance is handled honestly — each record preserves its committed legacy locator and run/model/prompt metadata, and unknown items (inputHash, input receipts, generatedAt) are left explicitly null rather than invented, consistent with §3.8. The records are labeled as staged copies with stage 'agenda-proposal' and decision 'proposed', so nothing is presented as a ratified judgment (§3.15), and the citation-verification tooling found no new citation identifiers to fabricate. The PR body's claims of validation and unchanged gates are not contradicted by anything in the diff; on what is visible, this is ordinary, well-labeled staging work.