Env Alias Audit

Use this skill to catch environment-variable alias drift before runtime failures.

What this skill does

• Parses env vars from .env-style files
• Evaluates canonical key + alias groups (built-in defaults or custom spec)
• Flags missing required groups
• Detects conflicting values across aliases in the same group
• Reports alias-only usage where canonical keys are absent

Inputs

Optional:

• ENV_FILE (default: .env)
• ALIAS_SPEC_FILE (default: built-in alias groups)
• REQUIRED_GROUPS (comma-separated canonical keys that must resolve)
• AUDIT_MODE (report or strict, default: strict)

Run

Use built-in alias groups:

ENV_FILE=.env \
REQUIRED_GROUPS=DATABASE_URL,STRIPE_API_KEY \
bash skills/env-alias-audit/scripts/audit-env-aliases.sh

Use custom alias spec:

ENV_FILE=.env.production \
ALIAS_SPEC_FILE=skills/env-alias-audit/fixtures/alias-spec.sample \
AUDIT_MODE=report \
bash skills/env-alias-audit/scripts/audit-env-aliases.sh

Run against fixtures:

ENV_FILE=skills/env-alias-audit/fixtures/.env.conflict \
REQUIRED_GROUPS=DATABASE_URL,STRIPE_API_KEY \
bash skills/env-alias-audit/scripts/audit-env-aliases.sh

Alias spec format

ALIAS_SPEC_FILE accepts one group per line:

CANONICAL_KEY=ALIAS_ONE,ALIAS_TWO

• Comments and blank lines are ignored
• Canonical key is always part of the checked group

Output contract

• Exit 0 when no strict failures are found
• Exit 1 on invalid input, missing required groups (strict), or conflicting alias values
• Prints per-group status (OK, WARN, FAIL) plus a summary