docs: Gate 1 adjacency refresh — cross-check 5 notes against current taxonomy

[hyperpolymath]

Summary

Coherence pass closing the docs/echo-types/roadmap.md § "Theory work" entry:

[unblocked] Gate 1 adjacency refresh: the five existing adjacency notes predate the taxonomy. Cross-check each against the current axes and flag any neighbour whose identity claim should be re-evaluated.

The five original notes — docs/adjacency/{quotients, galois-connections, refinement-types, information-flow, provenance}.adoc — were written 2026-04 against a five-axis taxonomy. The current taxonomy is eight numbered axes (axes 2 and 8 landed 2026-04-27 → 2026-05-20).

Per-note verdict

Note	Verdict
quotients.adoc	REFINED
galois-connections.adoc	REFINED
refinement-types.adoc	REFINED
information-flow.adoc	REFINED
provenance.adoc	REFINED

5/5 REFINED, 0 STILL-VALID-as-stated, 0 RE-EVALUATE. Every distinctness claim survives the new taxonomy; every note benefits from being re-stated in terms of the now-numbered axes.

Cross-cutting findings

• Axis 8 (info-theoretic vs computational access) sharpens four of five notes.
• The README's two-argument-families framing is also refresh-eligible: cleanly axis-7/axis-1 vs axis-5, with provenance's multiplicity argument as its own family.
• No content rewrites of the adjacency notes themselves in this PR — coherence follow-ups (per-note one-liner cross-references, README refresh, gate-2-handoff axis-8 sub-test) listed in the closure note.

Files

• NEW: docs/echo-types/decisions/gate1-adjacency-refresh.adoc (closure note, per decisions/no-2-cat.adoc template)
• EDIT: docs/echo-types/roadmap.md — Theory-work entry status flipped to [refreshed — see decisions/gate1-adjacency-refresh.adoc]

Refs roadmap.md § "Theory work" entry. Doc-only; no .agda changes.

Test plan

• AsciiDoc renders (no installed asciidoctor in this env — visual check on GitHub)
• git diff --stat: 2 files, no .agda
• Owner review of per-note REFINED verdicts and the recommended (optional) coherence follow-ups

🤖 Generated with Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 10 issues detected

Severity	Count
🔴 Critical	0
🟠 High	5
🟡 Medium	5

View findings

[
  {
    "reason": "No test directory or test files found",
    "type": "no_tests",
    "file": "/home/runner/work/echo-types/echo-types",
    "action": "flag",
    "rule_module": "honest_completion",
    "severity": "high",
    "deduction": 20
  },
  {
    "reason": "Issue in quality.yml",
    "type": "missing_workflow",
    "file": "quality.yml",
    "action": "create",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Issue in security-policy.yml",
    "type": "missing_workflow",
    "file": "security-policy.yml",
    "action": "create",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Issue in secret-scanner.yml",
    "type": "missing_workflow",
    "file": "secret-scanner.yml",
    "action": "create",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Action actions/cache@v4 needs attention",
    "type": "unpinned_action",
    "file": "agda.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "Action hyperpolymath/standards/.github/workflows/governance-reusable.yml@main needs attention",
    "type": "unpinned_action",
    "file": "governance.yml",
    "action": "pin_sha",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "No dependabot.yml or renovate.json found in echo-types",
    "type": "DependencyUpdate",
    "file": "/home/runner/work/echo-types/echo-types",
    "action": "auto_fix",
    "rule_module": "scorecard",
    "severity": "high",
    "remediation": "Add .github/dependabot.yml or renovate.json configuration.",
    "scorecard_check": "Dependency-Update-Tool"
  },
  {
    "reason": "Nominal-only SAST in echo-types: codeql.yml language matrix contains no language present in the repo and lacks `actions`, so CodeQL records zero results on every commit. Remediation: set the CodeQL matrix to `language: actions`.",
    "type": "StaticAnalysis",
    "file": "/home/runner/work/echo-types/echo-types",
    "action": "auto_fix",
    "rule_module": "scorecard",
    "severity": "medium",
    "remediation": "Add CodeQL or equivalent SAST workflow.",
    "scorecard_check": "SAST"
  },
  {
    "reason": "1 workflow(s) with tag-pinned (not SHA-pinned) actions in echo-types",
    "type": "DependencyPinning",
    "file": "/home/runner/work/echo-types/echo-types",
    "action": "auto_fix",
    "rule_module": "scorecard",
    "severity": "medium",
    "remediation": "Pin GitHub Actions and Docker base images by SHA hash.",
    "scorecard_check": "Pinned-Dependencies"
  },
  {
    "reason": "Repository has 1 non-main remote branch(es). Policy: single main branch only.",
    "type": "GS007",
    "file": ".",
    "action": "delete_remote_branches",
    "rule_module": "git_state",
    "severity": "medium"
  }
]

Powered by Hypatia Neurosymbolic CI/CD Intelligence