is-this-photo-real SKILL.md skillA
is-this-photo-real from tonydzi/second-brain-starter-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add tonydzi/second-brain-starter-kit/is-this-photo-real@git:20261020.402f6b7Pins git:20261020.402f6b7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- tonydzi/second-brain-starter-kit
- Path
skills/is-this-photo-real/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261020.402f6b7, committed Oct 20, 2026
- First version recorded
- Sep 24, 2026
- Size
- 16,873 bytes
- Repository stars
- 14
- License
- MIT
- Verify whether an image or video is authentic, original and correctly captioned — provenance checks, error level analysis, noise and JPEG compression analysis, clone and copy-move detection, lighting and shadow consistency, C2PA… Use when fact-checking a photo or video, checking for a deepfake or AI-generated image, spotting manipulation, or testing whether footage is recycled or miscaptioned.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Is this photo real Verification order is the whole skill: **provenance first, pixels last.** Finding the earliest copy and reading its caption settles more cases than every forensic filter combined, and it produces evidence you can show someone. Pixel forensics produces a colourful heatmap and an argument. The beginner mistake is running error level analysis on a downloaded JPEG and announcing the image is fake. The second is looking for deepfakes: the overwhelming majority of deceptive media is **real footage with a false caption** — right pixels, wrong war, wrong year, wrong country. ## Triage: what question are you actually answering | The claim under test | Do this first | Not this | |---|---|---| | "This shows event X in place Y" | `find-the-original-image`, then `geolocate-from-pixels` | Any forensic filter. Recontextualisation leaves no pixel trace at all. | | "This is an unaltered photograph" | Signal-level analysis, on the least-processed copy you can obtain | Analysing a screenshot or a platform download; both destroy the signal. | …
Read the whole file at its exact version.
How to install
mdr add tonydzi/second-brain-starter-kit/is-this-photo-real@sha256:37c2567d55f31a27The line at the top of this page pins the label git:20261020.402f6b7, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_p7qvua7de6cdqwry)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Sep 24, 2026 and Oct 20, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261020.402f6b7 latest | 2026-10-20 | 402f6b7 | 16,873 B | A | view · diff |
| git:20261007.cd6c208 | 2026-10-07 | cd6c208 | 16,879 B | A | view · diff |
| git:20261003.a2d662f | 2026-10-03 | a2d662f | 16,880 B | A | view · diff |
| git:20260924.2784cb2 | 2026-09-24 | 2784cb2 | 15,765 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (16873 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
tonydzi/second-brain-starter-kit · 14 stars · license MIT · pushed 2026-11-06 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_p7qvua7de6cdqwry GET https://markdownregistry.com/api/v1/resolve?ref=tonydzi/second-brain-starter-kit/is-this-photo-real GET https://markdownregistry.com/api/v1/blob/37c2567d55f31a27c065e055230dcd34b996baf8326c590551d393492d73cf27
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.