Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/damionrashford/media-osnpx agentmods add skills/damionrashford/media-os/gphoto2-tetherWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/damionrashford/media-os/gphoto2-tether)<a href="https://agentmods.dev/skills/damionrashford/media-os/gphoto2-tether"><img src="https://agentmods.dev/badge/skills/damionrashford/media-os/gphoto2-tether/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/damionrashford/media-os/gphoto2-tether"><img src="https://agentmods.dev/badge/skills/damionrashford/media-os/gphoto2-tether.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00265 | $0.03361 |
| Opus 5 | $0.00133 | $0.01681 |
| Sonnet 5 | $0.00053 | $0.00672 |
| Haiku 4.5 | $0.00026 | $0.00336 |
Grade A, and why
gphoto2-tether scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **`http://gphoto.org` uses HTTP only** — their HTTPS cert has long been invalid. Don't `curl https://gphoto.org/...` in scripts; use `http://` or pin to the mirror. Documentation URLs: manual at `http://gphoto.org/doc/ How it starts
The opening of the file, as written. The whole thing — 310 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Gphoto2 Tether
Context: $ARGUMENTS
Quick start
- What camera do I have plugged in? -> Step 1 (
tether.py detect) - Take one shot + pull it to disk: -> Step 2 (
tether.py shoot --download) - Live-view preview as MJPEG / JPEGs: -> Step 3 (
tether.py preview) - Record movie on camera: -> Step 4 (
tether.py movie) - Download every photo on the card: -> Step 5 (
tether.py bulk-download) - Change a setting (shutter / ISO / aperture): -> Step 6 (
tether.py config-*) - Timelapse: -> Step 7 (
tether.py timelapse) - Connect via Wi-Fi (PTP/IP): -> Step 8 (
tether.py ptpip)
When to use
- A supported DSLR/mirrorless is on USB (or on Wi-Fi via PTP/IP) and you want CLI control.
- Building a timelapse rig, photobooth, studio tether, automated capture loop.
- Remote focus pull, ISO/shutter/aperture bracketing, battery check.
- Always pair with
media-exiftoolafter capture if you need to tag EXIF / IPTC / XMP. - Not for video editing — use
ffmpeg-transcode/moviepyafter download.
Step 1 — Detect the camera
uv run ${CLAUDE_SKILL_DIR}/scripts/tether.py detect
Expands to:
gphoto2 --auto-detect
Output is a table of "Model | Port" pairs. Port is usually usb:NNN,MMM (bus, device). Use tether.py config-list afterwards to confirm config keys exist for that camera.
Step 2 — Capture (and optionally download)
Shoot one frame, keep it on the card:
uv run ${CLAUDE_SKILL_DIR}/scripts/tether.py shoot
Shoot and pull to the current directory:
uv run ${CLAUDE_SKILL_DIR}/scripts/tether.py shoot --download
Burst of 10 shots, all downloaded:
uv run ${CLAUDE_SKILL_DIR}/scripts/tether.py shoot --download --count 10
Under the hood (single shot):
gphoto2 --capture-image-and-download --filename "%Y%m%d-%H%M%S-%n.%C"
The %C specifier uses the file's actual extension (JPG, CR2, NEF, ARW, ...).
Step 3 — Preview / live-view
Dump a live-view JPEG to stdout once:
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 310 lines · 265 tokens per session scan A f60b0ec372df
gphoto2-tether is a skill published in the GitHub repository damionrashford/media-os (19 stars, last pushed 3mo ago), licensed MIT. It adds 265 tokens to every session and 3,361 once invoked, about $0.0013 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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