create-issue

Create Issue from Failure Pattern

Input

Describe the failure pattern: error message, test category, approximate count.

Steps

1. Reserve the next issue id atomically (#2531) — never hand-pick a number (a parallel PR may grab the same one; the dup only fails in the merge_group and wedges the queue):

NEW=$(node scripts/claim-issue.mjs --allocate)   # prints the reserved id
echo "$NEW"

This reserves the next id unique against origin/main ∪ every open PR's added issue files ∪ ids already reserved on the orphan ref, with first-push-wins atomicity. Use $NEW as {N} below. (The CI gate check:issue-ids:against-main rejects any PR that introduces a main-colliding id, so this is enforced, not just advised.)

1. Find sample test files matching the pattern:

grep -l "<error pattern>" /workspace/benchmarks/results/test262-results.jsonl | head -5

Or search the JSONL:

python3 -c "
import json
matches = []
with open('benchmarks/results/test262-results.jsonl') as f:
    for line in f:
        r = json.loads(line)
        if '<pattern>' in r.get('error',''):
            matches.append(r['file'])
print(f'Found {len(matches)} matching tests')
for m in matches[:5]:
    print(f'  {m}')
"

1. For each sample, extract the relevant source lines from the test file.

2. Write the issue file:

---
id: {N}
title: "{description} ({count} tests)"
created: YYYY-MM-DD
updated: YYYY-MM-DD
priority: {high|medium|low}
feasibility: {easy|medium|hard}
depends_on: []
goal: core-semantics
es_edition: {es5|es2015|es2016|es2017|es2018|es2019|es2020|es2021|es2022|es2023|es2024|multi|n/a}
language_feature: {normalized-feature-slug}
task_type: {bug|feature|test|refactor|planning}
---

# #{N} -- {title}

## Problem

{count} tests fail with {error pattern}. {1-2 sentence description}.

### Sample files with exact errors and source

**1. {test name}**
File: `{path}`
Error: `{exact error}`
```js
// Relevant source lines

Root cause: {why the compiler produces wrong output}

ECMAScript spec reference

{Link to the relevant spec section(s) at https://tc39.es/ecma262/} Example: §7.1.1 ToPrimitive

If multiple sections apply, list each with a one-line note on which step or sub-algorithm is relevant to this issue.

Root cause in compiler

{Which codegen function/file produces this pattern}

Suggested fix

{High-level approach — specific enough for architect to spec}

Acceptance criteria

• {specific test files that must pass}

• ={target} of {total} tests fixed