sameExpr now recurses through SelectorExpr bases (matching the selector Ident via ObjectOf, then recursing into the receiver), instead of only accepting bare Ident operands. The selector-base blind spot from sg74a1 is genuinely fixed.\n- Confirmed issue #65753 (sg87a1, contextcancelnotdeferred missing from the wasm LINTER_FLAGS string in cgo.yml) is still open and still 100 percent accurate against current code. No action needed beyond it already being tracked.\n- Spot-checked nolint and filecheck wiring on the 3 newest linters (closeerrorunchecked, typeassertionnil, fprintferrorunchecked): full parity, no suppression gaps.\n\n**New Finding: sg88a1**\n\nglobwalkignorederror.go and strconvparseignorederror.go each register an AssignStmt-only nodeFilter and share astutil.MatchDiscardedErrorCall, which only matches the two-value assignment form value, _ colon-equals pkg.Func(...). Neither linter has any handling for a bare statement call such as os.ReadDir(dir) or strconv.Atoi(s), which is legal Go and silently discards both return values with no assignment at all.\n\nThis exact gap was filed twice before (#61265, then refiled as #63094) and auto-expired unfixed both times, falling out of the bounded 3-run strategy memory window for 14 runs. What makes this run notable: a recent duplicate-code consolidation refactor (#65436, #65567) centralized the AssignStmt-matching logic into the shared helper for 3 callers, including jsonmarshalignoredeerror.go. That third file already has the correct companion fix sitting right next to the shared helper call: a dual nodeFilter plus its own ExprStmt handler. The refactor never copied that companion branch to its two siblings, even though the working reference implementation was right there in the same package tree. Both affected linters are CI-enforced on native and wasm, with zero ExprStmt test coverage. No live production false negative was found via grep, so this is latent rather than actively masking a bug today, but it is a real, zero-coverage CI-enforcement hole. Filed as sg88a1 with the exact fix template (mirror jsonmarshalignoredeerror checkDiscardedJSONExpr) cited in the issue.\n\n**Generated Task**\n\n1. Add an ExprStmt branch to globwalkignorederror.run and strconvparseignorederror.run, mirroring jsonmarshalignoredeerror, plus testdata covering bare statement calls to os.ReadDir, filepath.Glob, and strconv.Atoi. Small effort, two files, existing reference implementation to copy from.\n\n**Metrics**\n\n1 issue created out of a 3-issue budget (chose depth over padding, consistent with several recent runs where reconcile plus fix-verification left little else to refile). Total across all runs: 88 runs, 542 cumulative findings, 155 cumulative tasks, average success score 8.72.\n\n**Historical Context**\n\nThis continues a long-running pattern class called node_filter_too_narrow, first identified in jsonmarshalignoredeerror itself years ago and fixed there. The lesson this run adds: a shared-helper consolidation refactor is a high-risk moment for this class, since it can propagate an existing gap to new callers instead of fixing it once for everyone, especially when a correct reference implementation sits unexamined in the very same refactor.\n\n**Recommendations and Next-Run Focus**\n\nFix sg88a1 by mirroring the existing jsonmarshalignoredeerror pattern. For R89: verify sg88a1 landed, expect the open-issue count to sit at 2 (sg87a1 plus sg88a1) unless a maintainer bulk-closes again, audit fresh if the registry grows to 77, and check whether the sg88a1 fix extends MatchDiscardedErrorCall itself to support ExprStmt, which would close this pattern class for the shared helper permanently rather than per-caller.","title":"Sergo Report: Reconcile-FixVerify-Refile - 2026-10-06"}}}

sameExpr now recurses through SelectorExpr bases (matching the selector Ident via ObjectOf, then recursing into the receiver), instead of only accepting bare Ident operands. The selector-base blind spot from sg74a1 is genuinely fixed.\n- Confirmed issue #65753 (sg87a1, contextcancelnotdeferred missing from the wasm LINTER_FLAGS string in cgo.yml) is still open and still 100 percent accurate against current code. No action needed beyond it already being tracked.\n- Spot-checked nolint and filecheck wiring on the 3 newest linters (closeerrorunchecked, typeassertionnil, fprintferrorunchecked): full parity, no suppression gaps.\n\n**New Finding: sg88a1**\n\nglobwalkignorederror.go and strconvparseignorederror.go each register an AssignStmt-only nodeFilter and share astutil.MatchDiscardedErrorCall, which only matches the two-value assignment form value, _ colon-equals pkg.Func(...). Neither linter has any handling for a bare statement call such as os.ReadDir(dir) or strconv.Atoi(s), which is legal Go and silently discards both return values with no assignment at all.\n\nThis exact gap was filed twice before (#61265, then refiled as #63094) and auto-expired unfixed both times, falling out of the bounded 3-run strategy memory window for 14 runs. What makes this run notable: a recent duplicate-code consolidation refactor (#65436, #65567) centralized the AssignStmt-matching logic into the shared helper for 3 callers, including jsonmarshalignoredeerror.go. That third file already has the correct companion fix sitting right next to the shared helper call: a dual nodeFilter plus its own ExprStmt handler. The refactor never copied that companion branch to its two siblings, even though the working reference implementation was right there in the same package tree. Both affected linters are CI-enforced on native and wasm, with zero ExprStmt test coverage. No live production false negative was found via grep, so this is latent rather than actively masking a bug today, but it is a real, zero-coverage CI-enforcement hole. Filed as sg88a1 with the exact fix template (mirror jsonmarshalignoredeerror checkDiscardedJSONExpr) cited in the issue.\n\n**Generated Task**\n\n1. Add an ExprStmt branch to globwalkignorederror.run and strconvparseignorederror.run, mirroring jsonmarshalignoredeerror, plus testdata covering bare statement calls to os.ReadDir, filepath.Glob, and strconv.Atoi. Small effort, two files, existing reference implementation to copy from.\n\n**Metrics**\n\n1 issue created out of a 3-issue budget (chose depth over padding, consistent with several recent runs where reconcile plus fix-verification left little else to refile). Total across all runs: 88 runs, 542 cumulative findings, 155 cumulative tasks, average success score 8.72.\n\n**Historical Context**\n\nThis continues a long-running pattern class called node_filter_too_narrow, first identified in jsonmarshalignoredeerror itself years ago and fixed there. The lesson this run adds: a shared-helper consolidation refactor is a high-risk moment for this class, since it can propagate an existing gap to new callers instead of fixing it once for everyone, especially when a correct reference implementation sits unexamined in the very same refactor.\n\n**Recommendations and Next-Run Focus**\n\nFix sg88a1 by mirroring the existing jsonmarshalignoredeerror pattern. For R89: verify sg88a1 landed, expect the open-issue count to sit at 2 (sg87a1 plus sg88a1) unless a maintainer bulk-closes again, audit fresh if the registry grows to 77, and check whether the sg88a1 fix extends MatchDiscardedErrorCall itself to support ExprStmt, which would close this pattern class for the shared helper permanently rather than per-caller.","title":"Sergo Report: Reconcile-FixVerify-Refile - 2026-10-06"},"name":"create_discussion"}}}

sameExpr now recurses through SelectorExpr bases (matching the selector Ident via ObjectOf, then recursing into the receiver), instead of only accepting bare Ident operands. The selector-base blind spot from sg74a1 is genuinely fixed.\n- Confirmed issue #65753 (sg87a1, contextcancelnotdeferred missing from the wasm LINTER_FLAGS string in cgo.yml) is still open and still 100 percent accurate against current code. No action needed beyond it already being tracked.\n- Spot-checked nolint and filecheck wiring on the 3 newest linters (closeerrorunchecked, typeassertionnil, fprintferrorunchecked): full parity, no suppression gaps.\n\n**New Finding: sg88a1**\n\nglobwalkignorederror.go and strconvparseignorederror.go each register an AssignStmt-only nodeFilter and share astutil.MatchDiscardedErrorCall, which only matches the two-value assignment form value, _ colon-equals pkg.Func(...). Neither linter has any handling for a bare statement call such as os.ReadDir(dir) or strconv.Atoi(s), which is legal Go and silently discards both return values with no assignment at all.\n\nThis exact gap was filed twice before (#61265, then refiled as #63094) and auto-expired unfixed both times, falling out of the bounded 3-run strategy memory window for 14 runs. What makes this run notable: a recent duplicate-code consolidation refactor (#65436, #65567) centralized the AssignStmt-matching logic into the shared helper for 3 callers, including jsonmarshalignoredeerror.go. That third file already has the correct companion fix sitting right next to the shared helper call: a dual nodeFilter plus its own ExprStmt handler. The refactor never copied that companion branch to its two siblings, even though the working reference implementation was right there in the same package tree. Both affected linters are CI-enforced on native and wasm, with zero ExprStmt test coverage. No live production false negative was found via grep, so this is latent rather than actively masking a bug today, but it is a real, zero-coverage CI-enforcement hole. Filed as sg88a1 with the exact fix template (mirror jsonmarshalignoredeerror checkDiscardedJSONExpr) cited in the issue.\n\n**Generated Task**\n\n1. Add an ExprStmt branch to globwalkignorederror.run and strconvparseignorederror.run, mirroring jsonmarshalignoredeerror, plus testdata covering bare statement calls to os.ReadDir, filepath.Glob, and strconv.Atoi. Small effort, two files, existing reference implementation to copy from.\n\n**Metrics**\n\n1 issue created out of a 3-issue budget (chose depth over padding, consistent with several recent runs where reconcile plus fix-verification left little else to refile). Total across all runs: 88 runs, 542 cumulative findings, 155 cumulative tasks, average success score 8.72.\n\n**Historical Context**\n\nThis continues a long-running pattern class called node_filter_too_narrow, first identified in jsonmarshalignoredeerror itself years ago and fixed there. The lesson this run adds: a shared-helper consolidation refactor is a high-risk moment for this class, since it can propagate an existing gap to new callers instead of fixing it once for everyone, especially when a correct reference implementation sits unexamined in the very same refactor.\n\n**Recommendations and Next-Run Focus**\n\nFix sg88a1 by mirroring the existing jsonmarshalignoredeerror pattern. For R89: verify sg88a1 landed, expect the open-issue count to sit at 2 (sg87a1 plus sg88a1) unless a maintainer bulk-closes again, audit fresh if the registry grows to 77, and check whether the sg88a1 fix extends MatchDiscardedErrorCall itself to support ExprStmt, which would close this pattern class for the shared helper permanently rather than per-caller.' 2>&1"},"caller":{"type":"direct"}}],"container":null,"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":728,"cache_read_input_tokens":158869,"cache_creation":{"ephemeral_5m_input_tokens":728,"ephemeral_1h_input_tokens":0},"output_tokens":9,"service_tier":"standard","inference_geo":"global"},"diagnostics":null,

TypeAssertExpr nodeFilter flagging single-value pointer-type assertions without ok-check; correctly defers x,_:=v.(T) (ok discarded via blank) to sibling typeassertionokdiscarded, confirmed via reading that linters isTwoValueBlankOkAssertion which flags any discarded-ok regardless of pointer-ness - not a gap, intentional division of labor, testdatas own goodTwoValueUnderscore comment is accurate. FOUND BUG: analyzeTypeAssert(62-75) does `typeAssert.Type.(*ast.StarExpr)` as a syntactic gate and returns early BEFORE pass.TypesInfo is ever consulted, so (a) a type alias to a pointer (type P = *T; v.(P)) is invisible despite go/types resolving P to *types.Pointer transparently, and (b) parenthesized pointer-type syntax v.((*T)) (valid per the assertion grammar Type=TypeLit|(Type)) is invisible since typeAssert.Type becomes *ast.ParenExpr - no UnwrapParenExpr call exists anywhere in the file. This is the FIRST instance of the established paren_unwrap_gap class applying to a Type position instead of a value expression. Zero testdata coverage for either shape, no live pointer-type-alias found via grep in pkg/ (latent), typeassertionnil absent from cgo.yml LINTER_FLAGS (not CI-enforced). gh api search/issues confirmed zero prior coverage before filing. Filed sg84a1. 1 issue this run (chose a single high-confidence new-linter finding over padding, consistent with the many prior single-issue runs when only one finding was strong). Serena 24 tools stable, activate_project OK go/typescript/bash, no approval prompts for Read/Grep/Glob/Edit/gh api/safeoutputs/serena CLI; raw Bash grep -c/wc -c/find on repo-memory path blocked outright (reconfirms Glob/Read/Edit-only access to /tmp/gh-aw/repo-memory, consistent with all prior runs). safeoutputs create_issue via single JSON-object-argument CLI form worked in ONE shot (~3.6KB body), zero apostrophes, bold headers, fenced go block, no approval prompt, no retry. NEXT R85: verify sg84a1 landed; re-tally 17 opens (16 above + sg84a1); if registry grows (76th) audit fresh, and treat a first-pass paren_unwrap_gap probe (bare *ast.BasicLit/*ast.Ident/*ast.CallExpr/*ast.StarExpr assertions without UnwrapParenExpr) as a standing day-one check for any newly-registered linter, since it has now independently recurred in 3 consecutive new-linter audits (R82 closeerrorunchecked, R84 typeassertionnil, plus the originally-discovered instances); check whether closeerrorunchecked(74th) or typeassertionnil(75th) land in cgo.yml LINTER_FLAGS.\"}\n{\"date\": \"2026-10-03\", \"strategy\": \"DELTA-75to76-newlinter-audit(fprintferrorunchecked:node_filter_too_narrow-at-938-occurrence-scale)+reconcile-reverse-phantom-refile(63342-main-guard-4th,63343-nilctxpassed-3rd)\", \"findings\": 5, \"tasks_created\": 3, \"success_score\": 9, \"notes\": \"R85: registry DELTA 75->76 (grep -c Analyzer,$ registry.go=76). 76th=fprintferrorunchecked (PR #65073, added 2026-10-02, first-ever audit, ALREADY CI-enforced natively+wasm from day one per cgo.yml:1487/1490). AssignStmt-only nodeFilter (fprintferrorunchecked.go:40) means a bare ExprStmt call like fmt.Fprintf(w,...) with no assignment at all completely escapes detection - this is in fact the single most common way these calls are written in this codebase: grep found 938 bare fmt.Fprintf/Fprintln/Fprint statement calls across 193 files in pkg/ alone, vs the explicit `_, _ = ` form the linter actually catches. Two concrete sites cited: pkg/console/confirm.go:53-56 (writes to an io.Writer parameter, e.g. os.Stdout in real callers) and pkg/workflow/workflow_errors.go:99. This is the node_filter_too_narrow class (previously filed against globwalkignorederror/strconvparseignorederror, #61265/#63094) but at an unprecedented scale - prior instances affected a handful of sites, this affects nearly a thousand. Filed sg85a1. gh api reconcile: fresh state=open+labels=sergo query returned only 14 opens vs the 17 memory expected after R84 - diffed via a separate state=closed query sorted by updated and found 3 issues auto-expired within the prior 24h: 63342(4-linter main-guard gap, lineag

analyzeFuncBody ast.Inspect visits every BlockStmt/CaseClause/CommClause independently (line 52-63) and analyzeBlockStatements(line 72) only searches hasScannerErrCheck(stmts[i+1:]) within THAT SAME stmts slice (line 98) - a scanner.Err() check placed in an ENCLOSING block after an if/for/switch wrapping the scan loop lives in a different stmts slice and is invisible; matches the block_scope_state_reset class already catalogued from bufferresetbeforereuse one linter later. testdata badNestedBlock/goodNestedBlock only cover Err() check INSIDE the same if-block as the loop, never the enclosing-block case. Grepped every scanner.Scan()/scanner.Err() prod site in pkg/ (excl _test.go, ~20 sites across pkg/cli+pkg/parser+pkg/workflow) - ALL place loop+errcheck as direct top-level-function siblings, so 0 live FPs today (latent, same latency profile as sg61a1). receiverKey (line 227-250) recurses through arbitrarily-deep SelectorExpr chains keeping the ROOT idents types.Object fixed while accumulating path - CORRECTLY avoids the nested_selector_key_collapse class (sg62a1/#41376) that manualmutexunlock still has; audited-clean on that vein, better design than its predecessor. doc.go already documents 70th linter (no doc-sync gap); not yet in cgo.yml LINTER_FLAGS (not CI-enforced, pure diagnostic no SuggestedFix). Filed sg66a1=#aw_sg66a1 (block-scope Err()-check gap). Serena 24 tools STABLE. NEXT R67: verify sg66a1 landed; re-check the 5+1=6 opens (60367,60170,59875,59627,59122,+sg66a1); if registry grows again (71st) audit fresh; low-priority idea: probe bufioscannererunchecked isBufioScanner for wrapper-struct-embedding-bufio.Scanner blind spot (likely intentional scope limit, not filed).\"}\n{\"date\": \"2026-09-15\", \"strategy\": \"DELTA-70to71-newlinter-audit(blankassigncomma)+reconcile-reverse-phantom-refile(59122-closed-not_planned-bug-still-present)\", \"findings\": 5, \"tasks_created\": 2, \"success_score\": 9, \"notes\": \"R67: registry DELTA 70->71. 71st=blankassigncomma (PR #60893, 2026-09-14, no SuggestedFix, first-ever audit). gh api reconcile: #60557(sg65a1) confirmed CLOSED-COMPLETED (already fixed by R66). #59122 (nolint space-prefix, was open at R66) flipped to closed/not_planned (auto-expired) this run - re-read pkg/linters/internal/nolint/nolint.go:59-60 (strings.TrimPrefix(comment.Text,\\\"//\\\") then HasPrefix(text,\\\"nolint:\\\")) and confirmed the bug is STILL 100% present: a `// nolint:x` (single space) comment leaves a leading space after TrimPrefix and fails HasPrefix, silently dropping the directive from the index. This is the SECOND reverse-phantom-reconcile instance (closed but unfixed) after #58376/#60557 - re-filed as sg67a1. Full audit of blankassigncomma.go (stateless single-nodeFilter AssignStmt check, all-Lhs-blank with len>=2, properly wired to filecheck.ShouldSkipFilename + nolint.HasDirectiveForLinter, no scope-boundary/double-traversal/selector-collapse bug classes apply since it holds no state and does no ancestor walk): grepped every `_, _ = ` site in pkg/ (excl testdata/_test.go) and found 14 production matches, ALL deliberate idiomatic discards - pkg/console/spinner.go:208, pkg/workflow/maintenance_cron.go:46, pkg/workflow/compiler_yaml_main_job.go:37 (the PRs own cited motivating example), pkg/workflow/strings.go:174-175 (one line below an explicit comment: hash.Hash.Write never returns an error in practice, but check to satisfy gosec G104 - direct proof the pattern exists ONLY to satisfy a different linter), pkg/cli/outcome_eval_review.go:311, graders_run.go:365, update_extension_check.go:161, deps_outdated.go:181, deps_security.go:164, trial_repository.go:183 (explicit Ignore error comment), codemod_steps_run_secrets_env.go:450, docker_images.go:354, bootstrap_profile_github_app.go:284. Cross-referenced .golangci.yml:37 which disables errcheck repo-wide (exclude-functions broken in v2) - meaning `_, _ =` is this codebases MANUAL SUBSTITUTE for a broken exclude-list mechanism, and blankassigncomma (no allow-list of its own) directly re-flags the same pattern. NEW PATTERN CLASS added

Removed symbolic link before artifact upload: /tmp/gh-aw/latest

"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"