docs: add Signed commits section to CONTRIBUTING

[hyperpolymath]

Adds a Signed commits section to this repo's CONTRIBUTING, per owner ruling D218. The estate policy is docs/SIGNING-POLICY.adoc in hyperpolymath/standards.

This repo's default branch is covered by the zero-bypass Require-Signed-Commits ruleset, and rebase-merge is off. The section tells contributors what that requires:

• People and interactive agents sign with an SSH signing key.
• Apps, bots and workflows write through the API, so GitHub signs their commits.
• PRs are merged with squash.

If the file already had its own signing section, that section is replaced in place instead of adding a second one. Lines elsewhere that told people to sign with GPG are changed to match the policy (SSH for people).

This is a docs-only change. The commit was created through createCommitOnBranch, so GitHub signs it.

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Plan: Advanced

Run ID: aafb84ea-679d-422b-a3a3-d5f4b986cd0a

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• CONTRIBUTING.adoc

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• GitHub Check: scan / shell-secrets
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• GitHub Check: governance / Language / package anti-pattern policy
• GitHub Check: governance / Code quality + docs
• GitHub Check: governance / Check Workflow Staleness
• GitHub Check: governance / Guix primary / Nix fallback policy
• GitHub Check: governance / Well-Known (RFC 9116 + RSR)
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GitHub Actions: CI / 2_RSR Compliance Check.txt: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run echo "Checking RSR Bronze compliance..."
 �[36;1mecho "Checking RSR Bronze compliance..."�[0m
 �[36;1m�[0m
 �[36;1m# Documentation�[0m
 �[36;1mtest -f README.md || test -f README.adoc || (echo "Missing README.md or README.adoc" && exit 1)�[0m
 �[36;1mtest -f CONTRIBUTING.adoc || (echo "Missing CONTRIBUTING.adoc" && exit 1)�[0m
 �[36;1mtest -f CODE_OF_CONDUCT.md || (echo "Missing CODE_OF_CONDUCT.md" && exit 1)�[0m
 �[36;1mtest -f SECURITY.md || (echo "Missing SECURITY.md" && exit 1)�[0m
 �[36;1mtest -f MAINTAINERS.adoc || (echo "Missing MAINTAINERS.adoc" && exit 1)�[0m
 �[36;1mtest -f CHANGELOG.adoc || (echo "Missing CHANGELOG.adoc" && exit 1)�[0m
 �[36;1mtest -f CLAUDE.md || (echo "Missing CLAUDE.md" && exit 1)�[0m
 �[36;1m�[0m
 �[36;1m# Licenses�[0m
 �[36;1mtest -f LICENSES/MPL-2.0.txt || (echo "Missing LICENSES/MPL-2.0.txt" && exit 1)�[0m
 �[36;1mtest -f LICENSES/CC-BY-SA-4.0.txt || (echo "Missing LICENSES/CC-BY-SA-4.0.txt" && exit 1)�[0m
 �[36;1m�[0m
 �[36;1m# .well-known/�[0m
 �[36;1mtest -f .well-known/security.txt || (echo "Missing security.txt" && exit 1)�[0m
 �[36;1mtest -f .well-known/ai.txt || (echo "Missing ai.txt" && exit 1)�[0m
 �[36;1mtest -f .well-known/humans.txt || (echo "Missing humans.txt" && exit 1)�[0m
 �[36;1m�[0m
 �[36;1m# Build system�[0m
 �[36;1mtest -f justfile || test -f Justfile || (echo "Missing justfile or Justfile" && exit 1)�[0m
 �[36;1m�[0m
 �[36;1mecho "✅ RSR Bronze compliance verified!"�[0m
 shell: /usr/bin/bash -e {0}
 ##[endgroup]
 Checking RSR Bronze compliance...
 Missing CODE_OF_CONDUCT.md
 ##[error]Process completed with exit code 1.

---

GitHub Actions: CI / RSR Compliance Check: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run echo "Checking RSR Bronze compliance..."
 �[36;1mecho "Checking RSR Bronze compliance..."�[0m
 �[36;1m�[0m
 �[36;1m# Documentation�[0m
 �[36;1mtest -f README.md || test -f README.adoc || (echo "Missing README.md or README.adoc" && exit 1)�[0m
 �[36;1mtest -f CONTRIBUTING.adoc || (echo "Missing CONTRIBUTING.adoc" && exit 1)�[0m
 �[36;1mtest -f CODE_OF_CONDUCT.md || (echo "Missing CODE_OF_CONDUCT.md" && exit 1)�[0m
 �[36;1mtest -f SECURITY.md || (echo "Missing SECURITY.md" && exit 1)�[0m
 �[36;1mtest -f MAINTAINERS.adoc || (echo "Missing MAINTAINERS.adoc" && exit 1)�[0m
 �[36;1mtest -f CHANGELOG.adoc || (echo "Missing CHANGELOG.adoc" && exit 1)�[0m
 �[36;1mtest -f CLAUDE.md || (echo "Missing CLAUDE.md" && exit 1)�[0m
 �[36;1m�[0m
 �[36;1m# Licenses�[0m
 �[36;1mtest -f LICENSES/MPL-2.0.txt || (echo "Missing LICENSES/MPL-2.0.txt" && exit 1)�[0m
 �[36;1mtest -f LICENSES/CC-BY-SA-4.0.txt || (echo "Missing LICENSES/CC-BY-SA-4.0.txt" && exit 1)�[0m
 �[36;1m�[0m
 �[36;1m# .well-known/�[0m
 �[36;1mtest -f .well-known/security.txt || (echo "Missing security.txt" && exit 1)�[0m
 �[36;1mtest -f .well-known/ai.txt || (echo "Missing ai.txt" && exit 1)�[0m
 �[36;1mtest -f .well-known/humans.txt || (echo "Missing humans.txt" && exit 1)�[0m
 �[36;1m�[0m
 �[36;1m# Build system�[0m
 �[36;1mtest -f justfile || test -f Justfile || (echo "Missing justfile or Justfile" && exit 1)�[0m
 �[36;1m�[0m
 �[36;1mecho "✅ RSR Bronze compliance verified!"�[0m
 shell: /usr/bin/bash -e {0}
 ##[endgroup]
 Checking RSR Bronze compliance...
 Missing CODE_OF_CONDUCT.md
 ##[error]Process completed with exit code 1.

---

GitHub Actions: Governance / 2_governance _ Security policy checks.txt: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run set -uo pipefail
 �[36;1mset -uo pipefail�[0m
 �[36;1mDIR=.github/canonical-references�[0m
 �[36;1mif [ ! -d "$DIR" ]; then�[0m
 �[36;1m  echo "ℹ️  [R5] no $DIR/ — skipped (repo has not opted in)"�[0m
 �[36;1m  exit 0�[0m
 �[36;1mfi�[0m
 �[36;1mif ! command -v python3 >/dev/null 2>&1; then�[0m
 �[36;1m  echo "❌ [R5] python3 missing on runner — required for YAML rule parsing"�[0m
 �[36;1m  exit 2�[0m
 �[36;1mfi�[0m
 �[36;1mpython3 - <<'PY'�[0m
 �[36;1mimport os, sys, glob, subprocess�[0m
 �[36;1mtry:�[0m
 �[36;1m    import yaml�[0m
 �[36;1mexcept ImportError:�[0m
 �[36;1m    sys.exit("❌ [R5] PyYAML not installed on runner; install python3-yaml")�[0m
 �[36;1m�[0m
 �[36;1mdir_ = ".github/canonical-references"�[0m
 �[36;1mfiles = sorted(glob.glob(f"{dir_}/*.yml") + glob.glob(f"{dir_}/*.yaml"))�[0m
 �[36;1mif not files:�[0m
 �[36;1m    print(f"ℹ️  [R5] {dir_}/ has no .yml/.yaml rules — skipped")�[0m
 �[36;1m    sys.exit(0)�[0m
 �[36;1m�[0m
 �[36;1mtotal = 0�[0m
 �[36;1mfor rf in files:�[0m
 �[36;1m    with open(rf, encoding="utf-8") as fh:�[0m
 �[36;1m        cfg = yaml.safe_load(fh)�[0m
 �[36;1m    if not isinstance(cfg, dict):�[0m
 �[36;1m        print(f"❌ [R5] {rf}: top-level must be a mapping"); total += 1; continue�[0m
 �[36;1m    rid  = cfg.get("id", os.path.basename(rf))�[0m
 �[36;1m    desc = cfg.get("description", "")�[0m
 �[36;1m    pats = cfg.get("patterns") or []�[0m
 �[36;1m    canon = cfg.get("canonical_pointer", "")�[0m
 �[36;1m    scope = (cfg.get("scope") or {})�[0m
 �[36;1m    includes = scope.get("include") or []�[0m
 �[36;1m    if not pats or not includes:�[0m
 �[36;1m        print(f"❌ [R5:{rid}] missing patterns or scope.include in {rf}")�[0m
 �[36;1m        total += 1; continue�[0m
 �[36;1m    # exclude self-references�[0m
 �[36;1m    skip = set(["CHANGELOG.md", "CHANGELOG.adoc", rf])�[0m
 �[36;1m    if canon: skip.add(canon)�[0m
 �[36;1m    rule_hits = 0�[0m
 �[36;1m    for f_ in includes:�[0m
 �[36;1m        if f_ in skip or not os...

---

GitHub Actions: Governance / governance _ Security policy checks: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run set -uo pipefail
 �[36;1mset -uo pipefail�[0m
 �[36;1mDIR=.github/canonical-references�[0m
 �[36;1mif [ ! -d "$DIR" ]; then�[0m
 �[36;1m  echo "ℹ️  [R5] no $DIR/ — skipped (repo has not opted in)"�[0m
 �[36;1m  exit 0�[0m
 �[36;1mfi�[0m
 �[36;1mif ! command -v python3 >/dev/null 2>&1; then�[0m
 �[36;1m  echo "❌ [R5] python3 missing on runner — required for YAML rule parsing"�[0m
 �[36;1m  exit 2�[0m
 �[36;1mfi�[0m
 �[36;1mpython3 - <<'PY'�[0m
 �[36;1mimport os, sys, glob, subprocess�[0m
 �[36;1mtry:�[0m
 �[36;1m    import yaml�[0m
 �[36;1mexcept ImportError:�[0m
 �[36;1m    sys.exit("❌ [R5] PyYAML not installed on runner; install python3-yaml")�[0m
 �[36;1m�[0m
 �[36;1mdir_ = ".github/canonical-references"�[0m
 �[36;1mfiles = sorted(glob.glob(f"{dir_}/*.yml") + glob.glob(f"{dir_}/*.yaml"))�[0m
 �[36;1mif not files:�[0m
 �[36;1m    print(f"ℹ️  [R5] {dir_}/ has no .yml/.yaml rules — skipped")�[0m
 �[36;1m    sys.exit(0)�[0m
 �[36;1m�[0m
 �[36;1mtotal = 0�[0m
 �[36;1mfor rf in files:�[0m
 �[36;1m    with open(rf, encoding="utf-8") as fh:�[0m
 �[36;1m        cfg = yaml.safe_load(fh)�[0m
 �[36;1m    if not isinstance(cfg, dict):�[0m
 �[36;1m        print(f"❌ [R5] {rf}: top-level must be a mapping"); total += 1; continue�[0m
 �[36;1m    rid  = cfg.get("id", os.path.basename(rf))�[0m
 �[36;1m    desc = cfg.get("description", "")�[0m
 �[36;1m    pats = cfg.get("patterns") or []�[0m
 �[36;1m    canon = cfg.get("canonical_pointer", "")�[0m
 �[36;1m    scope = (cfg.get("scope") or {})�[0m
 �[36;1m    includes = scope.get("include") or []�[0m
 �[36;1m    if not pats or not includes:�[0m
 �[36;1m        print(f"❌ [R5:{rid}] missing patterns or scope.include in {rf}")�[0m
 �[36;1m        total += 1; continue�[0m
 �[36;1m    # exclude self-references�[0m
 �[36;1m    skip = set(["CHANGELOG.md", "CHANGELOG.adoc", rf])�[0m
 �[36;1m    if canon: skip.add(canon)�[0m
 �[36;1m    rule_hits = 0�[0m
 �[36;1m    for f_ in includes:�[0m
 �[36;1m        if f_ in skip or not os...

---

GitHub Actions: Governance / 4_governance _ Well-Known (RFC 9116 + RSR).txt: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run SECTXT=""
 �[36;1mSECTXT=""�[0m
 �[36;1m[ -f ".well-known/security.txt" ] && SECTXT=".well-known/security.txt"�[0m
 �[36;1m[ -f "security.txt" ] && SECTXT="security.txt"�[0m
 �[36;1mif [ -z "$SECTXT" ]; then�[0m
 �[36;1m  echo "::warning::No security.txt found."�[0m
 �[36;1m  exit 0�[0m
 �[36;1mfi�[0m
 �[36;1mgrep -q "^Contact:" "$SECTXT" || { echo "::error::Missing Contact field"; exit 1; }�[0m

---

GitHub Actions: Governance / governance _ Well-Known (RFC 9116 + RSR): docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run SECTXT=""
 �[36;1mSECTXT=""�[0m
 �[36;1m[ -f ".well-known/security.txt" ] && SECTXT=".well-known/security.txt"�[0m
 �[36;1m[ -f "security.txt" ] && SECTXT="security.txt"�[0m
 �[36;1mif [ -z "$SECTXT" ]; then�[0m
 �[36;1m  echo "::warning::No security.txt found."�[0m
 �[36;1m  exit 0�[0m
 �[36;1mfi�[0m
 �[36;1mgrep -q "^Contact:" "$SECTXT" || { echo "::error::Missing Contact field"; exit 1; }�[0m

---

GitHub Actions: Governance / governance _ Well-Known (RFC 9116 + RSR): docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run MIXED=$(grep -rE 'src="http://|href="http://' --include="*.html" --include="*.htm" . 2>/dev/null | grep -vE 'localhost|127\.0\.0\.1|example\.com|lol/|node_modules/|third-party/|vendor/' | head -5 || true)
 �[36;1mMIXED=$(grep -rE 'src="http://|href="http://' --include="*.html" --include="*.htm" . 2>/dev/null | grep -vE 'localhost|127\.0\.0\.1|example\.com|lol/|node_modules/|third-party/|vendor/' | head -5 || true)�[0m
 �[36;1mif [ -n "$MIXED" ]; then�[0m
 �[36;1m  echo "::error::Mixed content (HTTP in HTML)"�[0m

---

GitHub Actions: Governance / 5_governance _ Code quality + docs.txt: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run editorconfig-checker/action-editorconfig-checker@840e866d93b8e032123c23bac69dece044d4d84c
 with:
   github-***REDACTED_SECRET_ASSIGNMENT***
   version: latest
 ##[endgroup]
 Find 'latest' release
 ##[error]Error: The binary 'ec-linux-amd64*' not found

---

GitHub Actions: Governance / governance _ Code quality + docs: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run editorconfig-checker/action-editorconfig-checker@840e866d93b8e032123c23bac69dece044d4d84c
 with:
   github-***REDACTED_SECRET_ASSIGNMENT***
   version: latest
 ##[endgroup]
 Find 'latest' release
 ##[error]Error: The binary 'ec-linux-amd64*' not found

---

GitHub Actions: Governance / 9_governance _ Guix primary _ Nix fallback policy.txt: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run # Move the checker OUT of the scanned tree and delete the standards
 �[36;1m# Move the checker OUT of the scanned tree and delete the standards�[0m
 �[36;1m# checkout before scanning: the gate walks the whole caller tree, so�[0m
 �[36;1m# a packaging file shipped inside .standards-checkout/ would satisfy�[0m
 �[36;1m# the policy on the caller's behalf (same trap as the baseline job).�[0m
 �[36;1mcp .standards-checkout/scripts/check-package-policy.sh "$RUNNER_TEMP/"�[0m
 �[36;1mrm -rf .standards-checkout�[0m
 �[36;1mbash "$RUNNER_TEMP/check-package-policy.sh" .�[0m
 shell: /usr/bin/bash -e {0}
 ##[endgroup]
 ##[error]Package policy violation: no packaging found.

---

GitHub Actions: Governance / governance _ Guix primary _ Nix fallback policy: docs: add Signed commits section to CONTRIBUTING

Conclusion: failure

View job details

##[group]Run # Move the checker OUT of the scanned tree and delete the standards
 �[36;1m# Move the checker OUT of the scanned tree and delete the standards�[0m
 �[36;1m# checkout before scanning: the gate walks the whole caller tree, so�[0m
 �[36;1m# a packaging file shipped inside .standards-checkout/ would satisfy�[0m
 �[36;1m# the policy on the caller's behalf (same trap as the baseline job).�[0m
 �[36;1mcp .standards-checkout/scripts/check-package-policy.sh "$RUNNER_TEMP/"�[0m
 �[36;1mrm -rf .standards-checkout�[0m
 �[36;1mbash "$RUNNER_TEMP/check-package-policy.sh" .�[0m
 shell: /usr/bin/bash -e {0}
 ##[endgroup]
 ##[error]Package policy violation: no packaging found.

🔇 Additional comments (2)

CONTRIBUTING.adoc (2)

136-136: LGTM!

Also applies to: 138-138, 140-147

---

137-137: 📐 Maintainability & Code Quality

Confirm that rebase-merge is disabled.

The repository has active signing and linear-history rulesets for the default branch. The available repository metadata does not establish that rebase-merge is disabled. Retain the final statement only if the repository setting confirms it; otherwise qualify or remove it.

---

📝 Summary

Summary by CodeRabbit

• Documentation
  • Added guidance requiring signed commits on the default branch. People and interactive agents must use a GitHub-registered SSH signing key and verified committer email; apps, bots and workflows must use the approved API or signed-push action.
  • Clarified that pull requests must be squash-merged, as every commit on the branch is checked. Branches with unsigned commits must be recreated with signed commits; rebase-merge is disabled.

Walkthrough

The contribution guide now explains signed-commit requirements for people and automated contributors. It also specifies squash merges and how to handle unsigned pull-request branches.

Changes

Signed-commit contribution guidance

Layer / File(s)	Summary
Signing and merge requirements CONTRIBUTING.adoc	The guide specifies signing methods for people and automated contributors. It requires squash merges, explains that unsigned branches must be recreated with signed commits, and states that rebase-merge is disabled.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~4 minutes

Change: Other

Suggested reviewers: metadatastician

Merge Risk: ⚪ Minimal · up to ddb82

No concrete merge-blocking issue is established. The rebase-merge setting could not be verified.

Architecture Summary

Architecture risk: 🔵 Low · up to ddb82

The change affects 1 system.

Changed systems: CONTRIBUTING.adoc

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — CONTRIBUTING.adoc (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in CONTRIBUTING.adoc: Added contribution guidance requiring signed commits, with distinct signing procedures for people and automated contributors. It also specifies squash merges, explains that every PR-branch commit is checked, directs contributors to recreate unsigned branches with signed commits, and states that rebase-merge is disabled.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description accurately explains the documentation change, its signing policy requirements, and its docs-only scope.
Title check	✅ Passed	The title clearly and concisely identifies the addition of the Signed commits section to CONTRIBUTING.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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