Archive Grounding

This skill handles ZIP archives as container inputs in the any-input -> grounding -> downstream research / summary / report pipeline.

Its job is not to directly pretend that the whole archive has already been deeply grounded after unpacking. Its job is to:

1. unpack the archive,
2. build a stable archive bundle,
3. identify supported child files,
4. run the corresponding child skill for each supported child file,
5. collect those child bundles under the current archive bundle's child_outputs/ directory,
6. and only then write a real archive-level grounded.md.

Position in the pipeline

This skill is for archives that package together multiple materials, such as:

• project material bundles
• meeting material bundles
• report + slides + tables + audio/video attachments
• mixed research input packages

This skill is not a replacement for the child grounding skills themselves.

• document-grounding still handles document content
• table-grounding still handles spreadsheets / CSV tables
• pptx-grounding still handles PowerPoint decks
• meeting-audio-grounding handles meeting audio inputs
• meeting-video-grounding handles meeting videos
• audio_structuring remains the atomic audio transcription backend reused by the higher-level audio/video meeting entry skills

This skill acts as an orchestrator over packaged files.

Supported child file routing

The first version should route supported child files using a simple extension-based mapping:

• .pdf, .docx, .md, .txt -> document-grounding
• .xlsx, .csv -> table-grounding
• .pptx -> pptx-grounding
• .mp3, .wav, .m4a -> meeting-audio-grounding
• .mp4, .mov, .mkv -> meeting-video-grounding

Unsupported files may be recorded and skipped, but they must not be silently treated as grounded.

Required Workflow

When using this skill, you must follow this workflow:

1. First run the existing script entrypoint:

   bash .cursor/skills/archive-grounding/scripts/run.sh <input_zip> <output_root>

2. The script generates an archive bundle skeleton and inventory files such as:

   • extracted.md
   • extracted_meta.json
   • manifest.json
   • routed_items.json
   • unpacked/
   • child_outputs/

3. After the archive bundle is generated, read:

   • extracted.md
   • extracted_meta.json
   • manifest.json
   • routed_items.json
4. Then enumerate the supported child files in the archive.
5. For each supported child file, you must actually run the corresponding child skill. Do not stop after inventory / route planning.
6. For child files inside the archive, all downstream child grounding outputs must be written inside the current archive bundle's child_outputs/ directory, not into the global grounding root.
7. Use the recommended child output path recorded in routed_items.json when present.

8. A child file is only considered completed if one of the following is true:

   • its corresponding child bundle was actually generated under child_outputs/, or
   • a concrete failure reason is explicitly recorded.
9. Do not pretend that a child file was fully grounded merely because it was detected, inventoried, or assigned a route.
10. Only after the supported child files have been processed (or explicit failures have been recorded) may you write the archive-level grounded.md.
11. Do not create a placeholder grounded.md.
12. The task is not complete if:

• only the archive bundle skeleton exists,
• manifest.json / routed_items.json exist but no child skills were actually run,
• child bundles were written to the global grounding root instead of this archive bundle's child_outputs/, or
• archive-level grounded.md was written before the child processing step was completed.

Input

bash .cursor/skills/archive-grounding/scripts/run.sh <input_zip> <output_root>

Arguments

• input_zip: path to a .zip archive
• output_root: parent directory under which the archive bundle should be created

Example:

bash .cursor/skills/archive-grounding/scripts/run.sh \
  /path/to/materials.zip \
  data/grounded_notes

This will create something like:

/data/grounded_notes/archive-materials/

Output bundle contract

The script should create:

<archive_bundle>/
├─ extracted.md
├─ extracted_meta.json
├─ manifest.json
├─ routed_items.json
├─ unpacked/
├─ child_outputs/
└─ grounded.md   # written later by the agent, not by the script

File roles

extracted.md

Human-readable archive overview for the agent.

It should include:

• archive overview
• detected file inventory summary
• supported vs skipped items
• routed child skills
• the rule that child outputs must live under child_outputs/

extracted_meta.json

Global archive metadata, such as:

• source archive path
• archive id
• total file count
• supported file count
• skipped file count
• unpack directory
• generation timestamp

manifest.json

Machine-readable file inventory for unpacked contents.

Each item should include:

• relative path
• file name
• extension
• size
• detected type
• supported / unsupported
• skip reason if any

routed_items.json

Machine-readable routing plan for supported child files.

Each routed item should include:

• source relative path
• detected type
• routed skill
• status
• recommended child output path
• notes / failure reason if any

child_outputs/

Container directory for all downstream child grounding bundles generated from supported child files in this archive.

Child grounding outputs must be stored here rather than in the global grounding root.

grounded.md schema (recommended)

After the child files have been processed and the child bundles exist, the agent should write a stable archive grounding note such as:

# Archive Grounding

## 1. Archive Overview

## 2. Included Materials

## 3. Successfully Processed Child Items

## 4. Key Signals Across Materials

## 5. Skipped / Unsupported / Failed Items

## 6. Suggested Next Steps

## 7. Search Keywords

This is an archive-level grounding note, not a polished final report.

Important rule on absent file types

Do not treat the absence of a file type as a risk by default.

Examples:

• if the archive simply does not contain PPTX files, do not mark that as a missing item
• if the archive simply does not contain audio or video files, do not mark that as a missing item
• if the archive simply does not contain tables, do not mark that as a missing item

Only report:

• actual unsupported items,
• actual skipped items,
• actual failed child processing steps,
• or actual inconsistencies between the archive contents and the generated child outputs.

Quality bar

A good result means:

• the archive bundle exists
• the file inventory is correct
• every supported child file was either actually processed by its corresponding child skill or recorded with a concrete failure reason
• child bundles are stored under this archive bundle's child_outputs/
• the archive-level grounded.md is written only after child processing is complete
• the final archive note is useful as a stable intermediate artifact for downstream research / summary / report

A bad result means:

• the agent only unpacked and inventoried the archive
• the agent wrote archive-level grounded.md without running the child skills
• child outputs were scattered into the global grounding root
• unsupported or skipped files were silently treated as processed
• placeholder grounded.md was created

Failure handling

If a supported child file cannot be processed successfully, record that explicitly.

Examples:

• child skill missing
• child script failed
• child bundle path not created
• file appears corrupted
• environment dependency missing

Do not hide child-processing failures behind a fake “archive success”.