Hammer Labs HL-LOG-001 7 ENTRIES
REV SEP 7, 2026
LOG

Changelog and vintage log

Dated, newest first. Every line names a thing that shipped or a snapshot that was preserved, never an intention. Upstream payer files are typically removed after about 90 days, so the vintage entries are the record that a figure can still be reproduced from the evidence it rested on.

01

Preserved vintages

PreservedSnapshotWorld
SEP 7, 2026W-01 build 13Forty-three tools on the wire, twenty-five of them answering. Three routing skills added, eight in total, each served from the build that answers the calls: savings classification, vendor evidence, and writing the deliverable. Vintage unchanged at 2026-08-31; the refusal classes still number twenty-five.W-01
AUG 31, 2026W-01 vintage 2026-08-31, build 11Rate extract of 27 August across 115 billing codes and nine payers. Twenty-five refusal classes, each naming what would settle it.W-01
AUG 27, 2026Commercial rate extract preservedNegotiated-rate disclosures read and kept. Upstream files are typically removed after about 90 days; this snapshot is not.W-01
AUG 21, 20262026 Medicare Physician Fee Schedule preservedRVU file rvu26a, with status codes and PC/TC indicators.W-01

One row is added per snapshot preserved. This table starts at the public release. Captures made before it, including the two dated CMS extracts compared on coverage.hammer.ai, are not yet catalogued here and nothing is claimed for them until they are.

02

Everything

  1. SEP 7, 2026 VINTAGE W-01 build 13Forty-three tools on the wire, twenty-five of them answering. Three routing skills added, eight in total, each served from the build that answers the calls: savings classification, vendor evidence, and writing the deliverable. Vintage unchanged at 2026-08-31; the refusal classes still number twenty-five.
  2. SEP 1, 2026 SHIPPED Hammer Worlds public releaseW-01 healthcare coverage served over MCP at worlds.hammer.ai. Plugin 0.4.0 for Claude Code, Claude Cowork, Codex and Agent Skills clients.
  3. SEP 1, 2026 SHIPPED CMS coverage archive and reader at coverage.hammer.ai7,591 published comments with contractor replies across 814 comment periods, 858 active LCDs, 357 national decisions, 2,270 articles. Sixty-five datasets under preservation. Corpus handoff from the reader to an agent over the plugin.
  4. AUG 31, 2026 VINTAGE W-01 vintage 2026-08-31, build 11Rate extract of 27 August across 115 billing codes and nine payers. Twenty-five refusal classes, each naming what would settle it.
  5. AUG 27, 2026 VINTAGE Commercial rate extract preservedNegotiated-rate disclosures read and kept. Upstream files are typically removed after about 90 days; this snapshot is not.
  6. AUG 25, 2026 PLUGIN Plugin 0.2.0 to 0.4.0Five tools that take a range rather than a point: simulate, sensitivity, interval_check, decision_navigate, network_infer. Plugin moved to the repository root; installs made before this date must be removed and re-added.
  7. AUG 21, 2026 VINTAGE 2026 Medicare Physician Fee Schedule preservedRVU file rvu26a, with status codes and PC/TC indicators.

Plugin release notes, commit by commit, are in the plugin repository.

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