Adding Pi agent import support to Yaplog

Thinking

Investigating Pi Agent Import Support

I see the user is asking to add pi agent import support to the CLI/app, so I need to act on this. First, I’ll inspect the repository, which is a combination of Rails and a Go CLI. It seems I’ll probably need to implement the importing functionality for the pi agent, and it’s important to understand how the app works. I might not need to read everything related to Ruby unless necessary. First things first, I'll investigate.

$ ls

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$ find . -maxdepth 2 -type f | sed 's#^./##' | sort | head -200

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$ rg -n "import|agent|claude|codex|transcript|session|log" app cli config db test -S

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Thinking

Inspecting Pi logs

I need to understand the format of the Pi agent logs, which might be located in the /.pi directory. The user is asking for support regarding the CLI or app. I’ll need to figure out exactly what’s needed for this. The Pi documentation might help, but it seems limited to when questions arise about Pi itself, SDK, or import support. I should check local Pi logs and look at relevant files like the CLI main, API importer, existing importers, schema, and tests.

$ sed -n '1,260p' cli/main.go && printf '\n--- api ---\n' && sed -n '1,220p' cli/api.go && printf '\n--- claude cli ---\n' && sed -n '1,220p' cli/claude.go

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$ sed -n '1,140p' app/controllers/api/cli/imports_controller.rb && printf '\n--- transcript ---\n' && sed -n '1,130p' app/models/transcript.rb && printf '\n--- schema snippets ---\n' && rg -n "create_table \"(transcripts|messages|message_blocks|events|imports|transcript_sources|assets)\"" db/schema.rb -A45

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$ sed -n '1,260p' app/models/import/codex_jsonl.rb && printf '\n--- continued ---\n' && sed -n '260,560p' app/models/import/codex_jsonl.rb

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$ sed -n '1,260p' app/models/import/claude_jsonl.rb && printf '\n--- continued ---\n' && sed -n '260,640p' app/models/import/claude_jsonl.rb

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$ find test -type f | sort | xargs -I{} sh -c 'echo --- {}; sed -n "1,220p" {}'

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$ sed -n '220,520p' cli/main.go

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$ sed -n '1,260p' cli/picker.go && printf '\n--- tests ---\n' && sed -n '1,260p' cli/main_test.go && printf '\n--- config tests ---\n' && sed -n '1,260p' cli/config_test.go && printf '\n--- picker tests ---\n' && sed -n '1,260p' cli/picker_test.go

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$ find ~/.pi -maxdepth 5 -type f \( -name '*.jsonl' -o -name '*.json' -o -name '*.md' \) | sed 's#^#/#' | head -100

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$ find ~/.pi/agent -maxdepth 4 -type f | sed 's#^#/#' | head -200

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Tool: read

read
{
  "path": "~/.local/share/mise/installs/node/25.9.0/lib/node_modules/@mariozechner/pi-coding-agent/README.md",
  "limit": 300
}

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Tool: read

read
{
  "path": "~/.local/share/mise/installs/node/25.9.0/lib/node_modules/@mariozechner/pi-coding-agent/docs/session.md",
  "limit": 500
}

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Thinking

Inspecting sample JSON lines

I need to implement and inspect actual sample JSON lines. Maybe I'll use local files since the current session could contain sensitive information, but that's okay. I'll focus on getting the sample structure. It seems beneficial to check if the source has package code for the "session list," but it might not be necessary. I'll inspect a few lines from the local files, using jq to summarize keys rather than displaying the full text.

$ python3 - <<'PY'
import json,glob,os
paths=glob.glob(os.path.expanduser('~/.pi/agent/sessions/--Users-mikker-dev-yaplog--/*.jsonl'))
paths=sorted(paths,key=os.path.getmtime, reverse=True)[:2]
for p in paths:
 print('FILE',p)
 with open(p) as f:
  for i,line in zip(range(20),f):
   obj=json.loads(line)
   print(i, obj.get('type'), 'keys', list(obj.keys()))
   if obj.get('type')=='message':
    m=obj['message']
    print(' role',m.get('role'),'mkeys',list(m.keys()))
    c=m.get('content')
    print(' content', type(c).__name__, c if isinstance(c,str) else [x.get('type') for x in c[:5]])
   else:
    print(' obj', {k:obj[k] for k in obj if k not in ('message','data')})
 print()
PY

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$ sed -n '1,260p' app/views/messages/_message.html.erb 2>/dev/null || true; find app/views/messages app/components/ui -type f | xargs rg -n "role|tool_call|thinking|system|assistant|user|tool" -S

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$ sed -n '1,220p' app/components/ui/message_block.rb && sed -n '1,180p' app/views/messages/_item.html.erb && sed -n '1,180p' lib/tool_output.rb

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$ sed -n '260,520p' cli/picker.go && sed -n '240,520p' cli/picker_test.go

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