Evals / image / Metadata and privacy

Where was this taken

Where was DSCN0010.jpg taken? Write the latitude and longitude as decimal degrees to place.txt, one per line.

normalmulti-stepdeft image meta

The task

The reference answer shows the job can be done with deft. It is not an agent run.

(none)

Input

DSCN0010.jpg 157.9 KB · 640x480
DSCN0010.jpg

Reference output



How a result is judged (1 check)
  • python: code = "v = [float(x) for x in open('place.txt').read().split()]; assert abs(v[0] - 43.47) < 0.1 and abs(v[1] - 11.88) < 0.1, v"


Runs
CodexWithout deftPassed2026-11-07


Time
16s
New tokens
4.5k
Total input
81.4k


Output tokens
0.5k
Commands
5
Failed
1


Trace
  1. I’ll inspect the image’s metadata and, if needed, use visual clues to identify the location, then write the coordinates to `place.txt` in the current directory.
  2. rg --files -g 'DSCN0010.jpg' -g 'AGENTS.md' -g 'place.txt'
    output
    DSCN0010.jpg
  3. exiftool DSCN0010.jpg (exit 127)
    output
    zsh:1: command not found: exiftool
  4. python3 -c 'from PIL import Image; im=Image.open(\"DSCN0010.jpg\"); print(im.size); print(im.getexif())'
    output
    (640, 480)
{296: 2, 282: 300.0, 34853: 926, 34665: 268, 270: '                               ', 271: 'NIKON', 272: 'COOLPIX P6000', 305: 'Nikon Transfer 1.1 W', 274: 1, 306: '2008:11:01 21:15:07', 531: 1, 283: 300.0}
  5. python3 -c 'from PIL import Image; im=Image.open(\"DSCN0010.jpg\"); ex=im.getexif(); print(ex.get_ifd(34853))'
    output
    {1: 'N', 2: (43.0, 28.0, 2.814), 3: 'E', 4: (11.0, 53.0, 6.45599999), 5: b'\x00', 7: (14.0, 27.0, 7.24), 8: '06', 16: '\x00', 18: 'WGS-84   ', 29: '2008:10:23'}
  6. python3 -c 'from pathlib import Path; Path(\"place.txt\").write_text(\"43.4674483\\n11.8851267\\n\")'
  7. `place.txt` now contains:

```text
43.4674483
11.8851267
```

These coordinates were converted from the image’s embedded GPS metadata.
Output
place.txt 22 B
43.4674483
11.8851267

CodexWith deft, skill installedPassedRead the skillUsed deft2026-11-07


Time
18s
New tokens
6.1k
Total input
101.8k


Output tokens
0.5k
Commands
6
Failed
1


Trace
  1. I’ll inspect the image’s metadata and, if it doesn’t include GPS coordinates, use the image itself to identify the location. Then I’ll write the coordinates to `place.txt` in the current directory.
  2. cat .agents/skills/deft/SKILL.md && rg --files -g 'DSCN0010.jpg' -g 'AGENTS.md' -g 'place.txt'
    output
    ---
name: deft
description: "Use deft first for any simple, direct operation on local files, whatever the type: convert, read, extract, edit, compress, merge, split, compare or inspect. Try it before writing a script or one-liner. If unsure, run deft find; if it says no command does this, use another tool. Not for programming work: to read, write or change source code, skip it."
---

# deft

One local command for file jobs. Prefer it over writing Python or shell scripts.

Syntax: `deft <group> <command> [inputs] [-o output] [--options]`

Groups:
- `pdf`: Merge, split, compress, encrypt, forms, OCR, compare, convert
- `image`: Resize, crop, convert, compress, filters, montage, OCR
- `video`: Trim, crop, speed, convert, compress, GIF, frames (ffmpeg)
- `audio`: Convert, trim, merge, fade, speed, tag, normalize (ffmpeg)
- `doc`: Word/ODT/RTF: to text, Markdown, HTML, PDF; find and replace
- `slides`: PowerPoint: extract text, Markdown outline, PDF handout
- `data`: JSON/YAML/TOML/XML: convert, query with jq syntax, merge, diff
- `sheet`: Excel/CSV/ODS tables: filter, sort, join, pivot, convert
- `md`: Markdown to PDF, HTML, Word, EPUB; table of contents
- `html`: HTML to Markdown, text, Word, PDF; screenshots
- `epub`: E-books: info, to text, Markdown and PDF
- `email`: EML files: headers, text, attachments
- `contact`: VCF address books: to and from CSV
- `calendar`: ICS calendars: to and from CSV
- `gps`: GPX and KML tracks: convert, distance and time
- `youtube`: Info, downlo
… 862 more characters
  3. deft find "read image EXIF metadata GPS coordinates"
    output
    image meta   image -> image   Read EXIF, or set --title --author --copyright --date
image strip  image -> image   Remove EXIF, GPS and text metadata
image info   image -> report  Format, dimensions, EXIF orientation, GPS
video strip  video -> video   Remove metadata; no re-encode
  4. deft image info DSCN0010.jpg
    output
    ok image.info DSCN0010.jpg  640x480
width=640 height=480 orientation=1 has_metadata=true has_gps=true
  5. deft image meta --help && exiftool -GPSLatitude -GPSLongitude -n DSCN0010.jpg (exit 127)
    output
    deft image meta - Read EXIF, or set --title --author --copyright --date

Usage: deft image meta <image>... [-o <image|dir>] [options]
In: image (each handled separately)   Out: image (default <name>.meta.<ext>)
With no options it prints every tag, with GPS as decimal degrees.
With options it writes a copy; pixels are untouched. Remove tags with image strip.

Options:
  --title <text>               Description
  --author <text>              Artist
  --copyright <text>           Copyright notice
  --comment <text>             User comment
  --date <text>                When taken: 2026-05-01 12:30:00
Common: -o --force --dry-run --json -j   (deft help common)

Examples:
  deft image meta photo-1.jpg --author Ada --copyright 'CC BY' -o signed.jpg

Result fields: tags
zsh:1: command not found: exiftool
  6. deft image meta DSCN0010.jpg
    output
    ok image.meta DSCN0010.jpg  54 tags
Make=NIKON Model="COOLPIX P6000" Orientation="row 0 at top and column 0 at left" XResolution="300 pixels per inch" YResolution="300 pixels per inch" ResolutionUnit=inch Software="Nikon Transfer 1.1 W" DateTime="2008-11-01 21:15:07" YCbCrPositioning=centered ExposureTime="1/75 s" FNumber=f/5.9 ExposureProgram="normal program" PhotographicSensitivity=64 ExifVersion=2.2 DateTimeOriginal="2008-10-22 16:28:39" DateTimeDigitized="2008-10-22 16:28:39" ComponentsConfiguration=YCbCr_ ExposureBiasValue="0 EV" MaxApertureValue="2.9 EV" MeteringMode=pattern LightSource=unknown Flash="not fired, no return light detection function, suppressed" FocalLength="24 mm" FlashpixVersion=1.0 ColorSpace=sRGB PixelXDimension="640 pixels" PixelYDimension="480 pixels" InteroperabilityIndex=R98 InteroperabilityVersion=1.00 FileSource="digital still camera" SceneType="directly photographed image" CustomRendered="normal process" ExposureMode="auto exposure" WhiteBalance="auto white balance" DigitalZoomRatio=unused FocalLengthIn35mmFilm="112 mm" SceneCaptureType=standard GainControl=none Contrast=normal Saturation=normal Sharpness=normal SubjectDistanceRange=unknown GPSLatitudeRef=N GPSLatitude="43 deg 28 min 2.814 sec N" GPSLongitudeRef=E GPSLongitude="11 deg 53 min 6.45599999 sec E" GPSAltitudeRef="above sea level" GPSTimeStamp=14:27:07.24 GPSSatellites=06 GPSImgDirectionRef="[reserved GPS direction ref \"\", \"\"]" GPSMapDatum=WGS-84 GPSDateStamp=2008-10-23 latitude=4
… 45 more characters
  7. printf '43.46744833333334\\n11.885126666663888\\n' > place.txt && cat place.txt
    output
    43.46744833333334
11.885126666663888
  8. `place.txt` contains:

```text
43.46744833333334
11.885126666663888
```

The coordinates came from the photo’s GPS metadata.
Output
place.txt 37 B
43.46744833333334
11.885126666663888

Claude Opus 5.5Without deftPassed2026-11-07


Time
14s
New tokens
9.4k
Total input
57.0k


Output tokens
0.8k
Commands
0
Failed
0


Trace
    Output
    place.txt 20 B
    43.467448
11.885127

    Claude Opus 5.5With deft, skill installedPassedRead the skillUsed deft2026-11-07
    

    Time
    17s
    New tokens
    12.1k
    Total input
    94.9k
    

    Output tokens
    0.8k
    Commands
    0
    Failed
    0
    

    Trace
      Output
      .claude/skills/deft/SKILL.md 2.1 KB
      ---
name: deft
description: "Use deft first for any simple, direct operation on local files, whatever the type: convert, read, extract, edit, compress, merge, split, compare or inspect. Try it before writing a script or one-liner. If unsure, run deft find; if it says no command does this, use another tool. Not for programming work: to read, write or change source code, skip it."
---

# deft

One local command for file jobs. Prefer it over writing Python or shell scripts.

Syntax: `deft <group> <command> [inputs] [-o output] [--options]`

Groups:
- `pdf`: Merge, split, compress, encrypt, forms, OCR, compare, convert
- `image`: Resize, crop, convert, compress, adjust, montage, OCR
- `video`: Trim, merge, convert, compress, subtitles, GIF, frames (ffmpeg)
- `audio`: Convert, trim, normalize, denoise, cut silence (ffmpeg)
- `doc`: Word/ODT/RTF: to text, Markdown, HTML, PDF; find and replace
- `slides`: PowerPoint: extract text, Markdown outline
- `sheet`: Excel/CSV/ODS tables: SQL query, pivot, merge, split, convert
- `json`: JSON: convert, format, merge, diff, validate
- `toml`: TOML: convert, format, merge, diff, validate
- `xml`: XML: convert, format, merge, diff, validate
- `yaml`: YAML: convert, format, merge, diff, validate
- `md`: Markdown to PDF, HTML, Word, EPUB; table of contents
- `html`: HTML to Markdown, text, Word and PDF
- `epub`: E-books: info, to text, Markdown and PDF
- `gps`: GPX and KML tracks: convert, distance and time
- `qr`: Create QR codes and barcodes; read QR codes

How to use it:
1. Run `deft <group>` to list commands, or `deft find "<what you want>"` to search. If it says `no command does this`, use another tool.
2. Run `deft <group> <command> --help` for options and examples.
3. `deft convert <in> -o <out.ext>` converts between formats by extension.
4. Results are one line starting with `ok`, `partial` or `error`; add `--json` to parse them. Errors include a `hint:` with the fix.

Inputs are never overwritten; pass `--force` or `--in-place` to allow it. Globs and directories work as inputs; several inputs run in parallel.

If `deft` is not installed, ask the user, then follow https://github.com/firstprayer/deft/blob/main/docs/INSTALL.md

      place.txt 37 B
      43.46744833333334
11.885126666663888

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