Capture Sample
Create a bounded read-only probe that collects one raw Modbus sample through a selected target tool. Use when the user needs one physical read, raw words for byte-order work, or a manual probe before decoding.
Install
$ agentstack add skill-studioxvii-modbus-skills-capture-sample ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-studioxvii-modbus-skills-capture-sample) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Capture Sample
Generate an operator-controlled probe for one bounded read.
Follow ../../references/interaction-contract.md.
Process
- Read
references/probe-request.md. - Require route, unit identifier, register area, protocol offset, word count, and target.
- Run
python3 /scripts/run.py --request --output. - Confirm the artifact uses only function codes 01 through 04.
- Generate and validate the complete probe before asking once for the live physical
read against the intended device, then stop.
- For Node-RED, use the generated
MODBUS_CAPTURE_PATHoutput directly. For other tools, save the returned raw words ascapture/v1with the complete sample identity.
Output files
README.mdand the selected tool folder - Start here. These files describe and perform one bounded manual read; they do not connect automatically.tool-pack.zip- The portable copy of the probe files.manifest.json,checksums.sha256, andtool-pack-result.json- Normally ignore these. They verify the probe contents and safety limits.capture.json- Created after the operator performs the read. It is not produced by this skill.
Completion requires a generated probe pack and one presented live-read gate. This skill does not capture the sample itself.
Stop
- Stop for writes, broadcasts, discovery scans, stored credentials, or unbounded polling.
- Stop if probe identity is incomplete.
- Do not run the live read. Present the probe and wait for the operator.
- Do not generate final decoded engineering values.
Handoff
- Unknown byte order or datatype interpretation after the operator saves raw words: suggest
check-byte-order. - Time-series troubleshooting after a capture exists: suggest
analyze-capture.
Keep the probe manual, bounded, credential-free, and read-only.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: studioxvii
- Source: studioxvii/modbus-skills
- License: Apache-2.0
- Homepage: https://studioxvii.github.io/modbus-skills
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.