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fix: resolve all 301 error handling anti-patterns across codebase

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Systematic cleanup of every error handling anti-pattern detected by the
automated scanner. 289 issues fixed via code changes, 12 approved with
specific technical justifications.

Changes across 90 files:
- GENERIC_CATCH (141): Added instanceof Error type discrimination
- LARGE_TRY_BLOCK (82): Extracted helper methods to narrow try scope to ≤10 lines
- NO_LOGGING_IN_CATCH (65): Added logger/console calls for error visibility
- CATCH_AND_CONTINUE_CRITICAL_PATH (10): Added throw/return or approved overrides
- ERROR_STRING_MATCHING (2): Approved with rationale (no typed error classes)
- ERROR_MESSAGE_GUESSING (1): Replaced chained .includes() with documented pattern array
- PROMISE_CATCH_NO_LOGGING (1): Added logging to .catch() handler

Also fixes a detector bug where nested try/catch inside a catch block
corrupted brace-depth tracking, causing false positives.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Alex Newman
2026-04-19 19:57:00 -07:00
parent c9adb1c77b
commit a0dd516cd5
91 changed files with 4846 additions and 3414 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/supervisor/process-registry.ts
+43 -16
View File
@@ -33,8 +33,14 @@ export function isPidAlive(pid: number): boolean {
process.kill(pid, 0);
return true;
} catch (error: unknown) {
const code = (error as NodeJS.ErrnoException).code;
return code === 'EPERM';
if (error instanceof Error) {
const code = (error as NodeJS.ErrnoException).code;
if (code === 'EPERM') return true;
logger.debug('SYSTEM', 'PID check failed', { pid, code });
return false;
}
logger.warn('SYSTEM', 'PID check threw non-Error', { pid, error: String(error) });
return false;
}
}
@@ -65,10 +71,17 @@ export class ProcessRegistry {
for (const [id, info] of Object.entries(processes)) {
this.entries.set(id, info);
}
} catch (error) {
logger.warn('SYSTEM', 'Failed to parse supervisor registry, rebuilding', {
path: this.registryPath
}, error as Error);
} catch (error: unknown) {
if (error instanceof Error) {
logger.warn('SYSTEM', 'Failed to parse supervisor registry, rebuilding', {
path: this.registryPath
}, error);
} else {
logger.warn('SYSTEM', 'Failed to parse supervisor registry, rebuilding', {
path: this.registryPath,
error: String(error)
});
}
this.entries.clear();
}
@@ -168,11 +181,18 @@ export class ProcessRegistry {
try {
process.kill(record.pid, 'SIGTERM');
} catch (error: unknown) {
const code = (error as NodeJS.ErrnoException).code;
if (code !== 'ESRCH') {
logger.debug('SYSTEM', `Failed to SIGTERM session process PID ${record.pid}`, {
pid: record.pid
}, error as Error);
if (error instanceof Error) {
const code = (error as NodeJS.ErrnoException).code;
if (code !== 'ESRCH') {
logger.debug('SYSTEM', `Failed to SIGTERM session process PID ${record.pid}`, {
pid: record.pid
}, error);
}
} else {
logger.warn('SYSTEM', `Failed to SIGTERM session process PID ${record.pid} (non-Error)`, {
pid: record.pid,
error: String(error)
});
}
}
}
@@ -195,11 +215,18 @@ export class ProcessRegistry {
try {
process.kill(record.pid, 'SIGKILL');
} catch (error: unknown) {
const code = (error as NodeJS.ErrnoException).code;
if (code !== 'ESRCH') {
logger.debug('SYSTEM', `Failed to SIGKILL session process PID ${record.pid}`, {
pid: record.pid
}, error as Error);
if (error instanceof Error) {
const code = (error as NodeJS.ErrnoException).code;
if (code !== 'ESRCH') {
logger.debug('SYSTEM', `Failed to SIGKILL session process PID ${record.pid}`, {
pid: record.pid
}, error);
}
} else {
logger.warn('SYSTEM', `Failed to SIGKILL session process PID ${record.pid} (non-Error)`, {
pid: record.pid,
error: String(error)
});
}
}
}