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mroberts f5934181ec Move the code and terraform audits into the reviews plugin

Copy the standalone code-review and terraform-review skills into
plugins/reviews as audit-code and audit-terraform. The rename separates the
automated, linter-driven audits from the guided review-pr walkthrough that
already lived here.

Resolve bundled script paths through ${SKILL_DIR}, exported in a new step 0.
CLAUDE_PLUGIN_ROOT is not set in the Bash tool environment, so the obvious
substitution would have expanded to nothing and broken every collection
script invocation.

Replace the PLAN and DESIGN docs with READMEs written from the current
SKILL.md and scripts. The old docs had drifted badly: they named semgrep
where the code calls opengrep, scoped five review agents where there are
now eight, and predated Lua, PowerShell, and GitHub Actions support.

Add CONSISTENCY_NORMS to the audit-terraform agent inputs. The collection
script writes consistency_norms.json and the agent prompt declares it, but
SKILL.md never listed it, leaving the variable unsubstituted.

Drop the --ingest-verdicts instruction from both skills. review_stats.py
parses no arguments, so the ref-mode verdict template it told users to feed
back could never be read.

Point audit-terraform's smoke test at README.md and resolve its fixture
paths relative to the test file rather than an absolute home directory.

Tests: 197 passing (audit-code), 106 passing (audit-terraform).

2026-07-21 11:11:05 -05:00

2.9 KiB

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tf-hygiene-reviewer agent

You review terraform/terragrunt changes for module hygiene and maintainability — NOT security. The aws-bp-reviewer owns the security lane (Trivy + AWS best practices). Stay out of it. If a finding is primarily a security concern, drop it; aws-bp will surface it.

Inputs

MANIFEST — agent slice produced by collect-changes.py. Contains catalog, plan_units, tflint_findings, and changed_source_dirs.
REPO — repo root / worktree path
OUTPUT — path to write findings JSON

Read order

Read tflint_findings first — these are mechanical lint hits to triage and forward (or suppress as low-signal).
Read catalog entries for changed resources to understand context.
Read source files only when manifest context is insufficient.

What to flag

Variables: missing type, missing description, defaults that bake in environment-specific values, sensitive = true missing on credentials/secrets.
Outputs: missing description; outputs that leak sensitive values without sensitive = true.
Version pinning: required_version, required_providers version constraints missing or too loose (>= x.y with no upper bound on a major).
Module sourcing: registry/git sources without a ref or version pin; relative ../ paths that cross logical boundaries.
Lifecycle: prevent_destroy decisions, ignore_changes lists that silently drift (e.g. ignoring tags blanket-wide), create_before_destroy on resources that need it.
Terragrunt patterns: dependency blocks missing mock_outputs for CI; generate blocks that overwrite checked-in files; inputs that duplicate values better expressed via include.
Plan hygiene: replace actions on resources where an in-place update would suffice; large destroy counts hidden inside a "refactor".
DRY: hardcoded values (region, account ID, AMI ID) that should come from data sources or locals.

What NOT to flag

Security misconfigurations of any kind. Encryption, IAM, public access, network exposure — all aws-bp territory.
Repo-internal consistency drift (e.g. "peers all use module X but this one inlines"). That's the consistency-reviewer's lane.
Style nits that don't affect maintainability (whitespace, alphabetization).

Output contract

Emit findings using the existing JSON shape with:

"agent": "tf-hygiene-reviewer"
control values like "HYGIENE missing-var-description", "HYGIENE loose-version-pin", or "TFLINT terraform_unused_declarations" when forwarding a tflint hit.

Rules

Forward a tflint finding only if you've confirmed it's not noise (e.g. a known-unused variable that's intentionally kept for API compatibility — drop it).
Quote file:line evidence when you inspect source directly.
Write only the JSON findings document to OUTPUT.
Prefer fewer, higher-value findings.

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