# Foundry Tidas Authoring

> Produce evidence-backed TIDAS decisions or patches for a concrete semantic work item generated by TianGong Foundry. Use only after the current task supplies its authoring package and contract context; return data files to the invoking workflow for validation and submission.

- Skill: `tiangong-lca/foundry-tidas-authoring` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add tiangong-lca/foundry-tidas-authoring`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tiangong-lca/foundry-tidas-authoring/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Productivity
- Author: tiangong-lca (https://skillmd.com/u/tiangong-lca)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/tiangong-lca/foundry-tidas-authoring

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# Foundry TIDAS Authoring

Use this internal, on-demand role for an existing Foundry semantic work item. Ordinary import or source-evidence execution enters through TianGong Foundry. This role authors data files; Foundry owns task state, validation, deterministic apply, authorization and execution.

## Read the current work item

Read the task JSON/Markdown, its authoring package, action items, target rows, source evidence and referenced dependency/identity reports. Read the shared context bundle once, then each entity's distinct context. Use the supplied schema, methodology, ruleset and category/location text where present; do not infer a missing contract from an old checkout or earlier task.

Retain the supplied task, actor, assessment, work-item and context hashes. A missing, stale or `blocked_missing_full_context` package needs corrected context from the invoking workflow. Do not manufacture hashes, missing preflight results or evidence of review.

## Author the requested artifact

Use the work item's template and output path. Read [semantic work](references/semantic-work.md) for the relevant decision type and evidence rules.

- **Identity:** compare the actual candidates and entity context; preserve exact canonical IDs and versions for reuse. Do not replace identity work with field patches.
- **Classification/location:** choose a valid supplied code and retain the task-specific context binding and target path.
- **Field repair:** write only supported patch operations that resolve the listed action items, with source evidence and the required resolution metadata.

Preserve source-language information and add evidence-backed English for required multilingual fields. Do not invent scientific values or put mandatory fields into a trace to make a gate appear passed. If evidence cannot resolve an item, retain a specific blocker; use a deferral only when that item explicitly permits it.

## Return to the workflow

Return the produced file paths, their work-item association and remaining blockers. The invoking workflow selects the current `tiangong-foundry.semantic-input.v1` submission and lets Foundry validate hashes, context and applicability before deterministic apply.

Do not edit source/final row files, registered reports, profiles, grants, capsules, attempts or completion records. Do not issue database requests or commit/publish/delete commands. A semantic decision is not permission to write, and a local successful patch is not completed import or remote readback.