open-gsd/gsd-core v1.4.4 on GitHub

Install

npm i @opengsd/gsd-core@1.4.4
# or
npm i @opengsd/gsd-core@latest

What's Changed

Add Claude Fable 5 as an opt-in high-budget Anthropic preset (#1014, #1015)

This release adds a new anthropic-fable model-policy provider preset that routes the top tier to Claude Fable 5 (claude-fable-5) — Anthropic's most capable model (1M context window).

It is opt-in and fully backward compatible. Nothing changes for existing projects: the built-in anthropic provider and the quality / opus-tier defaults continue to resolve to Claude Opus 4.8. No project's resolved models change unless you deliberately select the new preset.

Why opt-in rather than a new default: Fable 5 is the highest-cost Claude model (~2× Opus 4.8 per token), so it is never selected silently — you turn it on intentionally.

How it's enabled

Set your model policy to the anthropic-fable provider at the high budget. Either run the interactive settings flow…

/gsd-config --advanced

…and choose provider anthropic-fable, budget high — or set it directly in .planning/config.json:

{
  "model_policy": {
    "provider": "anthropic-fable",
    "budget": "high"
  }
}

At anthropic-fable + high, GSD materializes this canonical tier mapping:

Profile tier	Resolved model
`opus` (top)	`claude-fable-5`
`sonnet` (mid)	`claude-fable-5`
`haiku` (low)	`claude-sonnet-4-6`

(The medium and low budgets of anthropic-fable behave like anthropic — Fable 5 only enters at high.)

To revert, switch the provider back to anthropic (Opus 4.8), or pin any model explicitly via model_overrides / model_policy.runtime_tiers. See Model Policy Presets in docs/CONFIGURATION.md for the full reference.

Full Changelog: v1.4.3...v1.4.4