pilot-chunk-transfer
Large file transfer with automatic chunking, resume capability, and integrity verification. Use this skill when: 1. You need to transfer files larger than 100MB reliably 2. You want resume capability for interrupted transfers 3. You need integrity verification with checksums per chunk Do NOT use this skill when: - Files are small (<10MB) - use pilot-share for simplicity - You need real-time streaming - use pilot-stream-data instead - You need bidirectional sync - use pilot-sync instead
Source facts
- Repository
- TeoSlayer/pilot-skills
- Last source activity
- April 20, 2026 at 17:42
- Detected SKILL.md language
- English
- Stars
- 8
- Forks
- 2
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Source instructions · Read-only preview- name
- pilot-chunk-transfer
- description
- Large file transfer with automatic chunking, resume capability, and integrity verification. Use this skill when: 1. You need to transfer files larger than 100MB reliably 2. You want resume capability for interrupted transfers 3. You need integrity verification with checksums per chunk Do NOT use this skill when: - Files are small (<10MB) - use pilot-share for simplicity - You need real-time streaming - use pilot-stream-data instead - You need bidirectional sync - use pilot-sync instead
- tags
- ["pilot-protocol","file-transfer","chunking","large-files"]
- license
- AGPL-3.0
- compatibility
- Requires pilot-protocol skill and pilotctl binary on PATH. The daemon must be running (pilotctl daemon start).
- metadata
- {"author":"vulture-labs","version":"1.0","openclaw":{"requires":{"bins":"[Truncated]"},"homepage":"https://pilotprotocol.network"}}
- allowed-tools
- ["Bash"]
# pilot-chunk-transfer
Large file transfer with automatic chunking, resume capability, and per-chunk integrity verification. Breaks large files into manageable chunks, tracks transfer progress, and enables resuming interrupted transfers.
## Commands
### Send file with chunking
```bash
FILE="/path/to/large-file.iso"
DEST="1:0001.AAAA.BBBB"
CHUNK_SIZE=$((1024 * 1024)) # 1MB
FILENAME=$(basename "$FILE")
FILESIZE=$(stat -f %z "$FILE" 2>/dev/null || stat -c %s "$FILE")
TOTAL_CHUNKS=$(( (FILESIZE + CHUNK_SIZE - 1) / CHUNK_SIZE ))
# Send metadata
pilotctl --json send-message "$DEST" \
--data "{\"type\":\"chunk_transfer_start\",\"filename\":\"$FILENAME\",\"size\":$FILESIZE,\"total_chunks\":$TOTAL_CHUNKS}"
# Send chunks
for ((i=0; i<TOTAL_CHUNKS; i++)); do
dd if="$FILE" bs="$CHUNK_SIZE" skip="$i" count=1 2>/dev/null > "/tmp/chunk_$i.dat"
CHUNK_HASH=$(md5sum "/tmp/chunk_$i.dat" | cut -d' ' -f1)
pilotctl --json send-message "$DEST" \
--data "{\"type\":\"chunk_metadata\",\"chunk_id\":$i,\"hash\":\"$CHUNK_HASH\"}"
pilotctl --json send-file "$DEST" "/tmp/chunk_$i.dat"
rm "/tmp/chunk_$i.dat"
done
# Send completion
pilotctl --json send-message "$DEST" \
--data "{\"type\":\"chunk_transfer_complete\",\"filename\":\"$FILENAME\"}"
```
### Receive and reassemble chunks
```bash
RECV_DIR="$HOME/.pilot/chunk-recv"
mkdir -p "$RECV_DIR"
INBOX=$(pilotctl --json inbox)
echo "$INBOX" | jq -c '.messages[]' | while read -r msg; do
TYPE=$(echo "$msg" | jq -r '.type')
case "$TYPE" in
chunk_transfer_start)
FILENAME=$(echo "$msg" | jq -r '.filename')
mkdir -p "$RECV_DIR/$FILENAME.chunks"
;;
chunk_metadata)
CHUNK_ID=$(echo "$msg" | jq -r '.chunk_id')
EXPECTED_HASH=$(echo "$msg" | jq -r '.hash')
# Verify chunk hash after receiving file
;;
chunk_transfer_complete)
FILENAME=$(echo "$msg" | jq -r '.filename')
cat "$RECV_DIR/$FILENAME.chunks"/chunk_* > "$RECV_DIR/$FILENAME"
rm -rf "$RECV_DIR/$FILENAME.chunks"
echo "Reassembled: $RECV_DIR/$FILENAME"
;;
esac
done
```
### Resume interrupted transfer
```bash
STATE_FILE="/tmp/transfer_state.json"
if [ -f "$STATE_FILE" ]; then
START_CHUNK=$(jq -r ".\"$FILENAME\".last_chunk // 0" "$STATE_FILE")
else
START_CHUNK=0
fi
# Continue from START_CHUNK and update state after each chunk
```
## Workflow Example
```bash
# Send large file in chunks with resume capability
./pilot-chunk-transfer.sh send /path/to/large.iso 1:0001.AAAA.BBBB
# Receive in background
./pilot-chunk-transfer.sh receive
```
## Dependencies
Requires pilot-protocol skill with running daemon, jq for JSON parsing, dd for chunk extraction, md5sum for integrity verification, and bc for progress calculations.
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