django-transaction SKILL.md skillA
django-transaction from codeatcode/oss-ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add codeatcode/oss-ai-skills/django-transaction@v1.0.1Pins v1.0.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- codeatcode/oss-ai-skills
- Path
frameworks/django-transaction/SKILL.md- Versions recorded
- 4
- Latest version
- v1.0.1, committed Oct 28, 2026
- First version recorded
- Sep 1, 2026
- Size
- 13,268 bytes
- Repository stars
- 30
- License
- GPL-3.0
Use when handling Django transactions and concurrency - atomic, select_for_update, on_commit, upserts, M2M ordering.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
> **Objective:** Use this skill to prevent race conditions, deadlocks, and data-integrity violations by enforcing atomic transaction boundaries, select_for_update locking patterns, and on_commit discipline for external calls.
# Django Transactions & Concurrency
Handle race conditions, locking, and transaction boundaries in Django.
## Overview
Django provides robust transaction management to ensure data consistency:
- **atomic** - Transaction boundaries with rollback on error
- **select_for_update** - Row-level locking for concurrent access
- **on_commit** - Deferred callbacks after transaction commits
- **update_or_create** - Upserts with race condition handling
- **M2M ordering** - ManyToMany relationships require PK first
---
## Transactions
### atomic
Transaction boundaries with automatic rollback on exception:
```python
from django.db import transaction
@transaction.atomic
def create_order_with_items(user, item_ids):
"""All-or-nothing order creation."""
order = Order.objects.create(user=user, total=0)
order.items.set(item_ids) # Both succeed or both rollback
return order
```
**Manual context manager:**
```python
with transaction.atomic():
…Read the whole file at its exact version.
How to install
mdr add codeatcode/oss-ai-skills/django-transaction@sha256:1bc2ccaf70953a93The line at the top of this page pins the label v1.0.1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ifdqfbirc7v4wass)
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Versions
The registry has recorded 4 versions of this file, between Sep 1, 2026 and Oct 28, 2026, about one every 19 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.1 latest | 2026-10-28 | 83beb90 | 13,268 B | A | view · diff |
| v1.0.1 | 2026-10-01 | 268819e | 12,855 B | A | view · diff |
| v1.0.1 | 2026-09-23 | f8bf298 | 13,606 B | A | view · diff |
| v1.0.0 | 2026-09-01 | 3d21d0a | 13,605 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13268 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
codeatcode/oss-ai-skills · 30 stars · license GPL-3.0 · pushed 2026-10-28 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_ifdqfbirc7v4wass GET https://markdownregistry.com/api/v1/resolve?ref=codeatcode/oss-ai-skills/django-transaction GET https://markdownregistry.com/api/v1/blob/1bc2ccaf70953a93491ad1b2ea1f5b3e6e378a89063118cd271858954aac6f42
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Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.