Fulcra Analytics

Fulcra Analytics

Use this skill when a user wants to inspect, summarize, or statistically analyze Fulcra data such as health metrics, calendar records, location visits, annotations, activity records, or team/agent activity logs.

Fulcra Analytics is an early-stage modular Python skill template. It provides a CLI-backed Fulcra client, record normalization utilities, DataFrame descriptive statistics, and a command-line entrypoint for quickly producing JSON summaries.

The core principle is privacy-respecting analysis: keep raw personal data local by default, compute summaries and aggregates, and only upload sanitized reports or explicitly approved artifacts.

When to Use

Use this skill when the user asks to:

• Analyze a Fulcra data type, metric, export, or time range.
• Summarize records from fulcra-api get-records or fulcra-api metric-time-series.
• Inspect JSON, JSONL/NDJSON, or CSV exports from Fulcra.
• Compute missingness, numeric summaries, categorical frequencies, boolean ratios, datetime ranges, or grouped summaries.
• Build an OKF-ready report from aggregate findings.
• Create a repeatable local analysis workflow for Fulcra data.

Do not use this skill when:

• The user only wants to create or configure custom data types; use Fulcra onboarding/tracking workflows instead.
• The task requires publishing raw health, location, calendar, or personal annotation data to a shared space without explicit authorization.
• The user needs advanced modeling, causal inference, forecasting, or visualization beyond descriptive summaries. This package can be a starting point, but the current implementation is intentionally lightweight.

Installed Package Layout

The skill directory contains a Python package under skills/fulcra-analytics/:

skills/fulcra-analytics/
  SKILL.md
  README.md
  pyproject.toml
  docs/
    architecture.md
    cli.md
    client.md
    loader.md
    statistics.md
  src/fulcra_analytics/
    __init__.py
    __main__.py
    cli.py
    client.py
    loader.py
    schemas.py
    statistics.py
  tests/
    test_cli.py
    test_client.py
    test_loader.py
    test_statistics.py

Main Interfaces

Command-line entrypoint

Use the CLI for routine analysis. It writes JSON to stdout.

uv tool run fulcra-analytics records StepCount "1 week" --pretty
uv tool run fulcra-analytics metrics HeartRate "1 day" --pretty
uv tool run fulcra-analytics file path/to/export.json --pretty
uv tool run fulcra-analytics catalog --base-types-only --pretty
uv tool run fulcra-analytics user-info --pretty

You can also run the package module directly inside a checkout or installed environment:

python -m fulcra_analytics records StepCount "1 week"

Python modules

Use the Python API when composing analysis workflows in scripts or notebooks:

from fulcra_analytics import FulcraClient, summarize_dataframe

client = FulcraClient()
df = client.get_records_dataframe("StepCount", "1 week")
summary = summarize_dataframe(df, group_by="source")
print(summary.to_dict())

Key modules:

• fulcra_analytics.client: CLI-backed Fulcra API wrapper.
• fulcra_analytics.loader: load JSON/JSONL/CSV exports and normalize Fulcra payloads into DataFrames.
• fulcra_analytics.statistics: descriptive statistics over DataFrames.
• fulcra_analytics.cli: Typer CLI for uv tool run fulcra-analytics.

Recommended Workflow

1. Clarify the user's analysis question.

   • Example: "How did my steps vary over the last week?"
   • Identify data type, date/time range, grouping dimensions, and desired output.

2. Prefer local or CLI-backed data access.

   • Fetch records with FulcraClient or the CLI commands.
   • Keep raw data local unless the user explicitly authorizes upload.

3. Normalize records into a DataFrame.

   • Use fulcra_analytics.loader or CLI commands.
   • Supported local formats: .json, .jsonl, .ndjson, .csv.

4. Compute summaries.

   • Use summarize_dataframe(df).
   • Add group_by=<column> when grouping by source, category, day, device, or another column is meaningful.

5. Report aggregate findings.

   • Use JSON for machine-readable output.
   • Convert findings to OKF markdown when storing in Fulcra File Store.
   • Include the question, data used, methods, findings, caveats, and next steps.

6. Verify outputs.

   • Confirm commands succeeded.
   • Confirm output is valid JSON or valid OKF markdown.
   • Cite exact paths or commands used.

CLI Recipes

Summarize records from Fulcra

uv tool run fulcra-analytics records StepCount "1 week" --pretty

This runs Fulcra CLI through FulcraClient, normalizes the result through the loader, computes descriptive summaries, and prints JSON.

Summarize metric time series

uv tool run fulcra-analytics metrics HeartRate "1 day" --pretty

Use this when the Fulcra data type is best represented as a metric time series.

Group summaries by a column

uv tool run fulcra-analytics records StepCount "1 week" --group-by source --pretty

The groups section includes row counts and numeric means for each group.

Analyze a local export

uv tool run fulcra-analytics file ./exports/step-count.json --pretty
uv tool run fulcra-analytics file ./exports/annotations.jsonl --pretty
uv tool run fulcra-analytics file ./exports/calendar.csv --group-by calendarName --pretty

Use local exports for privacy-sensitive analysis, reproducible tests, or offline workflows.

Inspect Fulcra catalog or user preferences

uv tool run fulcra-analytics catalog --base-types-only --pretty
uv tool run fulcra-analytics user-info --pretty

These are useful setup/debugging commands before choosing a data type or time range.

Python API Recipes

Load a local export

from fulcra_analytics.loader import load_dataframe
from fulcra_analytics.statistics import summarize_dataframe

df = load_dataframe("exports/step-count.json")
summary = summarize_dataframe(df)
print(summary.to_dict())

Fetch Fulcra records

from fulcra_analytics import FulcraClient, summarize_dataframe

client = FulcraClient()
df = client.get_records_dataframe("StepCount", "1 week")
summary = summarize_dataframe(df, group_by="source")

Fetch metric time series

from fulcra_analytics import FulcraClient, summarize_dataframe

client = FulcraClient()
df = client.metric_time_series_dataframe("HeartRate", "1 day")
summary = summarize_dataframe(df)

What the Statistics Include

summary.to_dict() returns JSON-friendly sections such as:

• row_count and column_count.
• columns.
• missing counts by column.
• numeric summaries: count, mean, std, min, max, sum, and quantiles.
• datetime summaries: count, min, max, and span in seconds.
• categorical summaries: count, unique count, and top values.
• boolean summaries: true/false counts and true fraction.
• groups when group_by is supplied.
• metadata describing source, data type, time range, or file path.

OKF Report Pattern

When writing a Fulcra File Store report, use markdown with YAML frontmatter:

---
type: Analytics Report
title: Step Count Summary
period: 1 week
privacy: summary-only
---

# Step Count Summary

## Question
What patterns are visible in StepCount records over the last week?

## Data Used
- Source: `StepCount`
- Range: `1 week`
- Raw records: local only; not uploaded

## Methods
- Fetched with `uv tool run fulcra-analytics records StepCount "1 week"`
- Normalized with `fulcra_analytics.loader`
- Summarized with `fulcra_analytics.statistics`

## Findings
- ...

## Caveats
- ...

## Next Steps
- ...

Privacy Rules

• Treat health, location, calendar, and personal annotation data as sensitive.
• Do not upload raw records to shared team spaces unless the user explicitly authorizes it.
• Prefer aggregate JSON or OKF markdown summaries.
• Include a Data Used or metadata section so the user can audit the inputs.
• When collaborating with other agents, share links and summaries rather than raw private datasets.

Common Pitfalls

1. Uploading raw Fulcra data by default. Keep raw exports local. Upload only sanitized reports or user-approved artifacts.

2. Forgetting that Fulcra CLI time ranges are strings. Quote ranges like "1 week", "30 days", or "2026-06-01..2026-06-07" when the shell would otherwise split them.

3. Assuming every payload has the same shape. Fulcra outputs and exports may wrap records in records, data, items, results, samples, or values. Use the loader rather than ad hoc parsing.

4. Grouping by a missing column. --group-by raises an error if the column does not exist. Inspect the columns section first or run without grouping.

5. Treating summaries as causal conclusions. Current statistics are descriptive. Avoid causal language unless the analysis explicitly supports it.

6. Letting Rich wrap JSON output. The CLI writes plain JSON to stdout intentionally, so downstream tools like jq or python -m json.tool can parse it.

Verification Checklist

Before reporting success:

• The command or Python workflow executed successfully.
• Tests pass when modifying the package: uv run --with pandas --with pytest --with typer --with rich python -m pytest tests -q.
• Python files compile: uv run --with pandas --with typer --with rich python -m py_compile src/fulcra_analytics/*.py.
• CLI JSON parses: pipe output to python3 -m json.tool or jq.
• Raw data stayed local unless upload was explicitly authorized.
• Any Fulcra File Store output is OKF markdown and includes the data source, method, findings, caveats, and next steps.

Further Reading

• docs/architecture.md — package architecture.
• docs/client.md — Fulcra CLI-backed client.
• docs/loader.md — record loading and normalization.
• docs/statistics.md — descriptive statistics behavior.
• docs/cli.md — command-line entrypoint.