Skip sorting flag aliases during completion

completion_context.go

@@ -32,12 +32,12 @@ func resolveCompletionContext(snapshot *routingSnapshot, completed []string, cur
 			return context
 		}
 		context.tail = append([]string(nil), context.route.args[len(context.route.canonicalPath):]...)
-		context.aliases = snapshot.flagAliases[context.route.canonicalPath.Key()].neutralRecords()
+		context.aliases = snapshot.flagAliases[context.route.canonicalPath.Key()].lookupRecords()
 		context.commandPosition = len(context.tail) == 0
 	case routeDiscovery:
 		context.command = &commandmeta.Command{CoreFlags: commandmeta.ReportingFlags()}
 		context.tail = append([]string(nil), context.route.args...)
-		context.aliases = snapshot.discoveryFlags[context.route.discoveryPath.Key()].neutralRecords()
+		context.aliases = snapshot.discoveryFlags[context.route.discoveryPath.Key()].lookupRecords()
 	}
 	return context
 }

docs/roadmap/remediation.md

@@ -1,7 +1,7 @@
 # Shell completion audit remediation
 
-Status: six fixes open; two efficiency findings for consideration. The completed invocation reporting audit is retained
+Status: all eight shell completion findings addressed. The completed
-below as historical evidence.
+invocation reporting audit is retained below as historical evidence.
 
 ## Completion review scope
 
@@ -133,7 +133,7 @@ even with `--quiet --debug` in the target words. The equivalent ordinary
 inspection with `--quiet` stayed silent. ConfigKit completion included
 `app` and `promptkit` for diff, and additionally `all` for validate, matching
 the installed capabilities. No new discrepancy was found in these paths.
-The transport and public metadata findings above remain open.
+The transport and public metadata findings were open at that review.
 
 ### 6. Supply the existing PromptKit smoke kinds as operand hints
 
@@ -165,7 +165,7 @@ encoding are linear in the candidates and text they inspect or emit. Stage 4
 expressly requires checking each suggested child against ordinary alias routing;
 this review does not propose removing or replacing that check. No additional
 correctness defect or newly introduced quadratic algorithm was identified within
-the remaining scope. The six existing findings remain open.
+the remaining scope. The six existing findings were open at that review.
 
 ### 7. Look up canonical completion metadata without scanning siblings
 
@@ -190,7 +190,9 @@ refresh and the selected candidate insertion checks.
 
 ### 8. Avoid sorting resolved flag aliases on every completion query
 
-Priority: P3. Status: for consideration.
+Priority: P3. Status: complete.
+
+- [x] Completed: Completion builds its lookup records directly from unique resolved aliases in linear time. Existing help ordering is unchanged; scoped and discovery completion checks pass.
 
 [resolveCompletionContext](../../completion_context.go) calls
 [neutralRecords](../../flag_aliases.go) for the selected canonical or discovery
@@ -207,6 +209,15 @@ display order matters and preserve scoped precedence and target availability.
 This is a source-level opportunity; no latency or allocation threshold is
 proposed.
 
+## Shell completion remediation validation
+
+The root and both optional module suites passed in the local workspace, and
+the root suite passed with `GOWORK=off`. Both opt-in interactive completion
+suites passed with Bash 5.3.9, Zsh 5.9, and Fish 4.2.1. They cover literal
+Tab-only input, actual edited arguments, attached and whole-word completion,
+path hints, descriptions, and control-like literal choices. The ignored
+workspace and module dependency versions were preserved.
+
 ---
 
 ## Historical invocation reporting audit remediation

flag_aliases.go

@@ -38,11 +38,25 @@ func (aliases resolvedFlagAliases) neutralRecords() []commandmeta.FlagAlias {
 	records := make([]commandmeta.FlagAlias, 0, len(keys))
 	for _, key := range keys {
 		alias := aliases.bySpelling[key]
-		records = append(records, commandmeta.FlagAlias{Source: alias.source.token(), Target: alias.target.token()})
+		records = append(records, alias.neutralRecord())
 	}
 	return records
 }
 
+// lookupRecords skips sorting: resolved source spellings are unique and the
+// parser's lookup does not depend on record order.
+func (aliases resolvedFlagAliases) lookupRecords() []commandmeta.FlagAlias {
+	records := make([]commandmeta.FlagAlias, 0, len(aliases.bySpelling))
+	for _, alias := range aliases.bySpelling {
+		records = append(records, alias.neutralRecord())
+	}
+	return records
+}
+
+func (alias resolvedFlagAlias) neutralRecord() commandmeta.FlagAlias {
+	return commandmeta.FlagAlias{Source: alias.source.token(), Target: alias.target.token()}
+}
+
 func (spelling capturedFlagSpelling) token() string {
 	if spelling.short {
 		return "-" + spelling.name