> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/docs/extensions/ai-rogue/imagegen-session-recovery.md).

# Finding Codex Imagegen PNGs

Sometimes the built-in `image_gen` tool shows the image in chat but does not leave an obvious file under `.codex/generated_images/`. In that case, the PNG is usually stored as base64 inside the Codex session JSONL.

## Quick Recovery

From the repo root:

```bash
SESSION=$(find "${CODEX_HOME:-$HOME/.codex}/sessions" \
  -type f \
  -name "*${CODEX_THREAD_ID}.jsonl" \
  -print \
  -quit)

OUT=docs/extensions/ai-rogue/generated/recovered-image.png
mkdir -p "$(dirname "$OUT")"

jq -r 'select((.payload.result? // "") | startswith("iVBORw0KGgo")) | .payload.result' \
  "$SESSION" \
  | tail -n 1 \
  | base64 -d > "$OUT"

file "$OUT"
```

Plain meaning:

* `SESSION` finds the current Codex chat log.
* `iVBORw0KGgo` is the normal beginning of a PNG stored as base64.
* `jq` pulls out only image payloads.
* `tail -n 1` uses the latest PNG in the session.
* `base64 -d` turns the text back into a real PNG file.

## If `CODEX_THREAD_ID` Is Missing

Use the newest session file instead:

```bash
SESSION=$(find "${CODEX_HOME:-$HOME/.codex}/sessions" \
  -type f \
  -name "*.jsonl" \
  -printf "%T@ %p\n" \
  | sort -nr \
  | head -1 \
  | cut -d" " -f2-)
```

Then run the same `jq ... | base64 -d` command above.

## List Images Without Printing Base64

Use this before extracting if you want to see what is available:

```bash
jq -r '
  select((.payload.result? // "") | startswith("iVBORw0KGgo"))
  | [input_line_number, .timestamp, (.payload.result | length)]
  | @tsv
' "$SESSION"
```

That prints:

```
line-number    timestamp    base64-character-count
```

## Current AI Rogue Concept Sheet

The first AI Rogue concept sheet was recovered from:

```
<private-codex-session-log>/rollout-2026-06-21T22-34-34-redacted.jsonl
```

The PNG payload appeared twice:

```
line 409  $.payload.result  1,949,120 base64 chars
line 410  $.payload.result  1,949,120 base64 chars
```

Recovered file:

```
docs/extensions/ai-rogue/generated/ai-rogue-concept-sheet-preview.png
```

It is a preview/reference image, not a production sprite atlas.


---

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