depdesk

Know which of your model calls are on a clock.

Providers retire models on their schedule, not yours. The notice arrives by email, to one person, months before anything breaks, and then it is forgotten until a request starts failing in production. depdesk crosses the deprecation notices you did not read with the models your code actually calls, and fails your build while there is still time to do something about it.

Zero dependencies. Python 3.9 or newer. Anthropic and OpenAI today, and any provider you write a catalog entry for.

Try it in ten seconds

No install, if you have uv:

uvx depdesk check .

Or the usual way:

pip install depdesk
depdesk check .

That is the whole setup. Point it at a repository and it reports every model identifier it finds, crossed against the provider's published deprecation dates. There is a deliberately broken sample in examples/legacy-app if you want to see a failing run before pointing it at your own code.

$ depdesk check . --fail-in 60
depdesk: 2 files scanned in .
catalog verified 2026-09-20 (2 days ago)

ALREADY RETIRED

  claude-opus-4-1-20250805
      provider:    anthropic
      retirement:  2026-08-05 (48 days ago)
      announced:   2026-06-05
      replacement: claude-opus-4-8
      app/legacy.py:1: OLD = "claude-opus-4-1-20250805"

RETIRES SOON

  gpt-5.4-cyber
      provider:    openai
      retirement:  2026-10-01 (9 days left)
      announced:   2026-09-11
      replacement: gpt-5.6-cyber
      app/legacy.py:2: CYBER = "gpt-5.4-cyber"

DEPRECATED PARAMETERS

  temperature
      behaviour:   Returns a 400 error when set to a non-default value.
      replacement: Omit the parameter and steer behaviour through prompting.
      sdk:         The Python SDK (v1.0 and later) removes temperature, top_p
                   and top_k, so passing them raises a TypeError.
      app/legacy.py:9: temperature=0,
          file also names: claude-opus-5

Summary: 1 already retired, 1 retires soon.
$ echo $?
2

Every line of that output is real: it is the tool running against a two file sample, not a mockup.

What it finds

Models on a clock. Identifiers written anywhere in the tree, including .env files and config, matched against the provider's own retirement dates. Each finding carries the announcement date, the retirement date, the replacement the provider names, and the exact lines where you use it.

Deprecated parameters. Model retirement is the loud failure. The quiet one is a parameter that starts returning 400 on newer models while your code keeps passing it, which is what happened to temperature, top_p and top_k on Claude Opus 4.7 and later. No changelog files that under "deprecation", and nothing in your test suite catches it if your tests never hit the new model. depdesk parses your Python with the standard library ast module, so it finds the keyword argument itself, not a string that looks like one.

Endpoints and products that the provider has put on notice, matched the same way.

Where the provider's own wording is ambiguous about which models a rule covers, depdesk says so and downgrades the finding to review instead of guessing.

Put it in a commit hook

For pre-commit, three lines in the config you already have. It checks the staged files, which is fast enough to sit in a commit hook; scanning the whole tree is CI's job.

# .pre-commit-config.yaml
repos:
  - repo: https://github.com/Ort0x36/deprecation-desk
    rev: v0.1.2
    hooks:
      - id: depdesk

Put it in CI

This is the point of the exit codes: the build starts failing the day a provider gives you notice, not the day the model dies.

# .github/workflows/depdesk.yml
name: model deprecations
on:
  push:
  schedule:
    - cron: "0 7 * * 1"   # Monday morning, so notice arrives before the deadline

jobs:
  check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
      - uses: actions/setup-python@v7
        with: { python-version: "3.12" }
      - run: pip install depdesk
      - run: depdesk check . --fail-in 60

There is also an action, if you prefer it to the two lines above:

      - uses: Ort0x36/deprecation-desk@v1
        with:
          path: .
          fail-in: "60"
          # usage: usage.csv

Weight it by real traffic

Scanning code tells you what is referenced. It does not tell you what is hot. Point --usage at an export and every finding gains a share of traffic, so you can tell a dead constant from 40% of production.

depdesk check . --usage usage.csv
depdesk check . --usage usage.csv --usage-count-column input_tokens

ALREADY RETIRED

  claude-3-5-sonnet-20241022  [3.3% of measured calls]
      provider:    anthropic
      retirement:  2025-10-28 (329 days ago)
      announced:   2025-08-13
      replacement: claude-sonnet-4-6
      seen in usage data but not found anywhere in the scanned tree

  claude-opus-4-1-20250805  [15.3% of measured calls]
      provider:    anthropic
      retirement:  2026-08-05 (48 days ago)
      announced:   2026-06-05
      replacement: claude-opus-4-8
      app/legacy.py:1: OLD = "claude-opus-4-1-20250805"

That first finding is the one worth the flag: a retired model still taking traffic from code that is not in this repository at all.

For Anthropic: Claude Console, Usage, Export. The CSV has an API key column and a model column, and depdesk sniffs them. CSV and JSON both work.

Ask what breaks later

depdesk check . --today 2027-01-01

More useful than it sounds: it answers "what breaks over the holidays" before anyone leaves.

When a finding is not a finding

Documentation, changelogs and migration notes legitimately name models that are dead. A tool you cannot silence on a line you have already judged is a tool people stop running, so there are two escapes, both deliberate:

OLD = "claude-opus-4-1-20250805"  # depdesk: ignore

depdesk check . --exclude "CHANGELOG.md" --exclude "*/migrations/*"

The marker silences one line, in any file type, in whatever comment syntax that file uses, because it is matched as text. --exclude takes a glob, matched against the path and the file name, and repeats. Neither has a project level config file on purpose: an ignore list nobody reads is how a tool like this starts lying.

Commands and flags

depdesk check [PATH ...]      scan a tree and report what is dying
depdesk upstream              ask whether the provider pages moved
depdesk list                  print the catalog

The catalog, and why you can trust it

The only thing that makes this tool worth anything is whether the dates in it are true. So they are not hidden: depdesk/data/catalog.json is plain JSON, every entry was transcribed from the provider's own page, and the file records when that happened. depdesk check prints a warning when the catalog is more than 30 days old.

depdesk upstream          # did the provider pages change since then?
depdesk upstream --save   # record the current state as the new baseline

upstream does not parse the page into a catalog. An earlier version hashed the whole page and produced a different digest on three consecutive fetches of the same unchanged content, because provider docs carry per-request markup. So it extracts the model identifiers and the dates, compares those against the catalog, and prints what appeared and what disappeared. A human decides what it means. A scraper that half works would produce a catalog that looks maintained and is not, which is the exact failure this tool exists to prevent.

upstream exits 1 when a page moved, 3 when it could not be fetched, and 0 otherwise. It prints, but does not fail on, the identifiers a page names that the catalog does not mention: the OpenAI page alone names 35 of those and always will, because a deprecation page also lists models that are not being deprecated. That is a standing difference, not an event, and a weekly alarm that fires on it stops being read. Pass --strict if you do want those to fail.

This repository runs upstream every Monday and opens an issue when a provider page moves, so drift lands in front of a person instead of in a log nobody reads.

What it does not do

Being plain about the limits, because the whole point is to be trustworthy:

• It does not know your provider's private schedule. It knows what is on the public deprecation pages, transcribed by hand.
• It only covers Anthropic and OpenAI today. Other providers are a catalog entry away, and pull requests are welcome. --catalog takes your own file.
• It finds identifiers written as text. A model id assembled at runtime from string pieces will not be found by the scanner. The --usage path catches that case, which is part of why it exists.
• It reads .env files, because that is where model configuration lives. It prints only lines that matched a model identifier, but if that bothers you, scan a narrower path.
• It will not edit your code. Migrating a prompt is a judgement call and this tool has no opinion about your prompts.

Contributing

Catalog out of date? A pull request editing depdesk/data/catalog.json is the fastest path, and the diff is readable by anyone. Want a provider we do not cover? Open an issue with a link to their public deprecation page. See CONTRIBUTING.md.

Development

python3 -m pytest -q tests/
python3 -m depdesk check .

The test suite pins the behaviour that matters: that gpt-4-turbo does not match inside gpt-4-turbo-preview, that an active model stays silent, that the parameter rule needs an affected model in the same file before it fires, and that the fingerprint survives cosmetic markup changes but not a changed date.

Licence

MIT. Built by Wendel Ortiz while running an LLM product in production.