Pin deployed model source revisions

[vahid-ahmadi]

What changed

• pins OBR, BoE SVAR, FRB/US, and US HANK dependencies to reviewed 40-character Git commits
• makes Modal fetch those exact detached revisions rather than mutable main branches
• injects deployed revisions into production adapter provenance
• corrects BoE SVAR and FRB/US source URLs in provenance
• updates reproducibility instructions when an exact revision is available
• adds tests that require full SHAs and keep pyproject pins synchronized with Modal pins

Why

Production provenance previously reported package versions while deployment cloned mutable branches. Several model repositories retain version 0.1.0 across code changes, so a published run could not be reconstructed from its provenance.

Model updates now require an intentional reviewed pin change instead of silently changing the next deployment.

Validation

• 29 focused provenance, source-pin, and adapter tests passed
• Ruff passed on changed Python files
• Python compilation passed
• git diff --check passed

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Project	Deployment	Actions	Updated (UTC)
macromod	Ready	Preview, Comment	Jul 26, 2026 1:52pm