Tools

Inspect what is in the workspace without changing anything.

describe_capabilities - the QC API knowledge pack. Fetch once per session. Unguarded.
list_files(directory?) - recursive directory listing, depth-limited.
read_file(path) - file contents.
search_files(pattern, glob?) - regex search across the workspace.
find_workspace_file(name) - fuzzy filename lookup.
list_strategies() / list_indicators() - everything the discovery service has parsed, including invalid entries with their parse error.
workspace_info() - workspace path, available data files, active strategy/indicator counts.
workspace_search(query) - full-text search across all workspace files.
get_app_info() - QC version, workspace id, license tier.
get_example(topic) - canned snippet for a given API topic.

File mutation

Create / edit / delete / rename. All auth-guarded, sandboxed, with dirty-file refusal.

create_file(path, content) - new file with auto-injected disclaimer header. Refuses to overwrite a dirty file (one with unsaved editor changes).
edit_file(path, content) - replace the entire file. Refuses on dirty files.
apply_diff(path, oldText, newText) - surgical replace. Same dirty-file guard.
delete_file(path, reason) - file only (not directories). Reason is required so the model documents intent. Refuses on dirty files.
rename_file(old_path, new_path) - same workspace; refuses on dirty files; refuses if destination exists.
undo_edit(path) - restore the previous content from one-deep undo history. Only works for the most recent edit_file / create_file.

Windows file locks (file open in Excel, file currently being executed by Python, etc.) surface as EBUSY/EPERM and are translated to a friendly "File is locked by another process" error.
Dirty-file refusal sends back: "File has unsaved changes in the editor. Ask the user to save or discard before retrying."

Edit Jupyter notebooks cell-by-cell.

create_notebook(path, cells) - new .ipynb with an array of {cell_type, source}.
edit_cell(path, cell_id, new_source) - replace a cell's source.
insert_cell(path, cell_id, cell_type, new_source) - insert after the given cell id.
delete_cell(path, cell_id) - remove a cell.

Inspect parquet files, run backtests, read results.

describe_data_file(path) - schema, row count, time range, columns.
query_parquet(sql) - DuckDB SQL over a parquet file. Read-only.
run_backtest(strategy, params, data_file, date) - single-day single-combo backtest. Returns stats.
run_sweep(strategy, params_grid, ...) - parameter sweep. Returns the per-combo metrics matrix.
get_backtest_results(id?) - last (or by id) backtest result snapshot.
get_equity_curve(id?) - per-tick equity series.
get_last_trades(n) - the n most recent trades from the active backtest.

Drive the active chart and read the terminal buffer.

list_chart_instances() - chart ids and their active strategies / indicators.
add_strategy_to_chart(chart_id, file) / remove_strategy_from_chart(chart_id, instance_id).
add_indicator_to_chart(chart_id, file) / remove_indicator_from_chart(chart_id, instance_id).
screenshot_chart(chart_id?) - PNG bytes of the active chart canvas.
read_terminal({lines, since, scriptPath}) - the last N entries from the QC terminal buffer (script output, errors, MCP tool log lines).
refresh_workspace() - rescan strategies/, indicators/, notebooks/ and emit discovery events.