plamentsv/config-correctness

Injectable Skill: Config Correctness

L1 trigger: L1_PATTERN=true AND (config/ OR settings OR constants OR DEFAULT_ OR MAX_ OR MIN_ OR protocol docs/comments detected) Inject Into: depth-edge-case, depth-state-trace Language: Go and Rust Finding prefix: [CFG-N]

Purpose

Configuration bugs are often single-line semantic drift: a limit exists but is not used, a default is testnet-only but ships in production, a doc comment says one bound while code enforces another, or a feature flag changes protocol-visible enum values. This skill is a bounded enumeration pass, not a new agent.

1. Configuration Inventory

Build a table of security-relevant constants and runtime config fields:

| Config/Constant | Declared Value | Documented Value / Comment | Runtime Use Sites | Verdict | |-----------------|----------------|-----------------------------|-------------------|---------|

Include:

• DEFAULT_*, MAX_*, MIN_*, *_LIMIT, *_TIMEOUT, *_INTERVAL, *_FACTOR;
• chain parameters, genesis/testnet/mainnet defaults, peer/network limits, RPC limits, difficulty/EMA/oracle knobs;
• feature-flag or platform-conditional values that affect serialization, consensus, object layout, or API output.

2. Required Checks

For each row:

• Doc/code drift: compare the declared value with nearby comments, docs, config examples, and protocol constants.
• Unused limit: if a max/min/factor exists, find the enforcement site. If no enforcement path exists, flag it.
• Network-mode drift: verify testnet/devnet defaults cannot silently apply to production mode.
• Unit drift: verify seconds vs milliseconds, bytes vs chunks, slots vs blocks, and percentage vs basis-point units.
• Feature/platform drift: verify feature flags or OS-specific types do not change externally visible enum values, byte layout, consensus fields, or API semantics.
• Boundary effect: substitute the configured min/max/equality point into the function that consumes it.

Tag evidence as [CFG-DOC-DRIFT:{file}:{line}], [CFG-UNUSED-LIMIT:{file}:{line}], [CFG-UNIT:{file}:{line}], or [CFG-FEATURE-DRIFT:{file}:{line}].

3. Non-Finding Rules

Do not report harmless style differences. A config finding needs at least one concrete consequence: consensus divergence, DoS, stale security bound, unexpected production exposure, cross-platform incompatibility, or user/API misbehavior.

4. Output

Use normal finding format. If no finding exists, still emit the inventory table with SAFE rows and concrete file:line evidence for the checked constants.