[zyssyz123]

Important

1. Contribution guidelines and development review workflow followed.
2. Existing issues and pull requests searched. Dify #43838 prevents new snippet IDs from containing hyphens; it does not repair runtime parsing of existing/imported graphs.
3. Related issue identified below.
4. Conventional Commits title used; no breaking change intended.
5. The PR title is suitable for the squash merge commit.
6. CLA Assistant has requested the contributor's signature; it is pending.

Related Issue

Refs langgenius/dify#43830

Summary

Existing or imported workflows can contain a node such as input-check. Its output is available through a selector, but {{#input-check.validated_input#}} is skipped by template discovery and survives unchanged into the LLM prompt. Accept ASCII hyphens in the node-ID portion of the runtime, variable-parser, and Answer-template patterns. Preserve the IDs themselves and all existing variable-name, path-depth, and length restrictions.

Regression tests cover exact ID preservation, UUID/edge-position hyphens, nested values, unsupported syntax, Answer segments, and the real LLM node calling its model adapter with red / blue instead of the placeholder. Dify-side Prompt, reference-warning, and RAG parsers have a companion change in langgenius/dify#44036.

Validation:

• Before the change, the focused regression run had 9 intended failures and 3 passing syntax controls.
• Full Graphon suite: 994 passed. Focused rendering/node/response-stream suite: 139 passed.
• Lockfile, Ruff formatting/lint, type checking, and import-layer checks passed. Repository documentation tests: 29 passed.
• Independent test, code, knowledge, and final naming reviews completed.
• Tested the same four regex edits against the dev environment's installed Graphon 0.7.0: real LLMNode.run() calls an in-process capture adapter with resolved inputs. No external model or media-provider calls were made.
• After deployment, the same checks passed in the API, both workflow workers, and the priority worker; API health and the public console endpoint were healthy.

Rollout: Dify currently pins Graphon 0.7.0. The dev verification applies only these regex edits to that version; it does not upgrade the host to Graphon 0.8.0. A compatible release/backport and Dify dependency update are required for normal release rollout.

Checklist

• This pull request links the issue it resolves or advances
• This pull request title follows Conventional Commits, and any breaking change is marked with !
• If CLA Assistant prompted me, I signed CLA.md in the pull request conversation

From Codex

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[zyssyz123]

I have read the CLA Document and I hereby sign the CLA