[sergo] Sergo Report: Registry-Delta 37th-Linter osgetenvlibrary Audit + hardcodedfilepath Probe - 2026-06-29

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Executive Summary

Run 51 detected a registry delta 36→37 — new 37th linter osgetenvlibrary. Fresh-audited it (CLEAN, enforce-ready) and probed hardcodedfilepath (never deep-audited). One precision issue filed. 50/50: cached reconcile of R50 landing + new exploration of two never-audited linters.

Tool & Registry Updates

• Serena LSP: 23 tools stable (no change R4–51).
• cmd/linters/main.go analyzers: 36 → 37 (grep -c Analyzer = 37).
• New 37th = osgetenvlibrary (main.go:77) — flags os.Getenv/os.LookupEnv in libraries.
• R50 #aw_sg50a1 landed as httpstatuscode: context detection gates on hardcoded identifier spellings (status/statusCode/.StatusCode), not on type — false n [Content truncated due to length] #42004 (open).

Strategy Split (50/50)

Cached reuse: registry-delta detector + reconcile R50 landing. Confirmed #42004 open; syntactic holdouts #40243/#40435 unchanged.

New exploration: fresh audit of two never-deep-audited linters — osgetenvlibrary (the delta) and hardcodedfilepath (311 LOC).

Findings

osgetenvlibrary — AUDITED CLEAN, enforce-ready

Byte-clone of ossetenvlibrary. calledOSFunc is type-resolved (fn.Pkg().Path()=="os", lines 84–90) — no syntactic name-gate. nolint:37/58, filecheck.IsTestFile:49, main/cmd skip:29 all present. 77 prod os.Getenv/LookupEnv sites = high true-positive yield, ready for CI enforcement. No FN/FP.

hardcodedfilepath — 1 latent FP (filed)

Type-resolved const collection, nolint+filecheck, GenDecl/FuncLit handling all correct. Only gap: hasFormatVerb (lines 88–93) recognizes just %s %d %v %q %w %f; format-template paths using %x/%t/%c/%g/%p/%e/%b/%o/%U escape exclusion → mis-flagged as constant candidate. Zero prod TP today (all 4 path templates use %s) → latent. pattern_set_too_narrow family.

Tasks Generated

1. hardcodedfilepath: hasFormatVerb verb-set too narrow — format-template paths using %x/%t/%c/%g escape exclusion (latent FP) #42174 — hardcodedfilepath hasFormatVerb verb-set narrow (latent FP, S effort, %%-aware scan fix). Issue created.

Metrics

Metric	Value
Findings	5
Issues created	1
Linters clean	osgetenvlibrary, hardcodedfilepath-core
Success score	8/10
Total runs	51

Historical Context

5th consecutive registry-delta capture (33→34→35→36→37). Each new linter cloned from a type-resolved template = clean. Syntactic-match family now confined to legacy #40243/#40435.

Next-Run Focus

Watch 38th via grep -c Analyzer vs 37; fresh-probe seenmapbool (#40733), errstringmatch (#40244); recheck #42174 landing.

References: §28350163760

Generated by 🤖 Sergo - Serena Go Expert · 271.1 AIC · ⌖ 12.2 AIC · ⊞ 5.9K · ◷

• expires on Jun 29, 2026, 9:26 PM UTC-08:00

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