Portfolio Query

Fetch and present cap table data for a single company or across multiple companies.

Using cap_table_chart alongside this skill

For single-company cap table overview/summary/snapshot requests, use the cap_table_chart MCP tool directly — it renders an interactive stacked bar chart in desktop clients (Cowork) or an ASCII chart in terminal clients (Claude Code):

cap_table_chart(corporation_id=<id>)

cap_table_chart also accepts as_of_date for point-in-time snapshots (see Point-in-time snapshots below).

After cap_table_chart renders, do NOT duplicate its content. The tool returns two things: a chart_data object rendered as an interactive stacked bar chart in MCP App clients (Claude Desktop, Cowork), and a _terminal_fallback ASCII string for terminal clients (Claude Code) where the interactive view can't render.

What you MUST NOT do in any client:

• Emit a markdown-style share class table (pipe-delimited headers with alignment rows) on top of the chart. This is the core duplication regression — in MCP App clients, the user sees the chart AND a redundant table stacked underneath; in terminal, it competes with the ASCII fallback. Just don't.
• Restate summary numbers the chart already shows (total outstanding, total FD, total raised) as bullet points or highlighted bold lines.
• Render stakeholder or option-pool tables in text — those are for the fallback/detailed path below, not when you've routed to the chart.

What terminal clients DO need: either the tool's _terminal_fallback surfaced verbatim, or a brief ASCII bar chart of equivalent shape. Pick one, once. Don't do both.

Your text response alongside cap_table_chart should be 2–3 sentences of commentary highlighting something notable — e.g. unusually large option pool, concentrated ownership, zero-outstanding classes — plus an optional single-sentence next-step offer. In MCP App clients that's the whole response. In terminal clients, prefix it with the one ASCII rendering.

Prerequisites

• Single company: resolve corporation_id from list_accounts
• Multi-company: loop all corporation_pk accounts from list_accounts

Data Retrieval

Portfolio Enumeration

Call list_accounts to get all accessible entities. Filter to corporation_pk: accounts. Extract up to 20 numeric corporation IDs. If more than 20 companies, ask the user to narrow scope.

Per-Company Commands

Call the relevant command for each company depending on the query:

Command Reference

Detail mode: The gateway now defaults all list commands to detail=summary automatically. You do not need to pass "detail": "summary" or "summary": "true" — summary mode is the default. Summary returns aggregate data (count, totals, type/status breakdowns) and is orders of magnitude faster for companies with 1,000+ grants. For individual grant-level records (e.g. searching by name, paginating through results), pass "detail": "full" with "page_size": "25". See the "Search grants by name" row above for an example.

Ordering & top-N queries: Grant/RSU/SAR/CBU list commands support server-side ordering. Use -quantity for descending (top holders), quantity for ascending. Combine with page_size to get only the top N records without fetching everything. Always use ordering+page_size for "top N" or "largest" queries — never fetch all records and sort client-side, especially for companies with 1,000+ grants. Available ordering fields: quantity, remaining_shares, exercised_shares, issue_date, stakeholder_name, grant_number.

Point-in-time snapshots

cap_table:get:cap_table_by_share_class, cap_table:get:cap_table_by_stakeholder, and the cap_table_chart tool accept an optional as_of_date param. When provided, they return the cap table as of that date instead of live data. Pass ISO (YYYY-MM-DD) or MM/DD/YYYY:

fetch("cap_table:get:cap_table_by_share_class", {"corporation_id": corporation_id, "as_of_date": "2026-03-31"})
cap_table_chart(corporation_id=<id>, as_of_date="2026-03-31")

Use as_of_date whenever the user's question is anchored to a specific date ("as of Q1 close", "on 3/31", "at fiscal year end"). If the user doesn't specify a date, omit the param — the API defaults to today.

Limitations: future dates are accepted only for companies enrolled in future-dated cap tables; dates before incorporation are rejected. Other cap-table commands (grants, SAFEs, convertibles, 409A, rounds) do not yet support as_of_date — live data only for those.

Single-Company Detailed View

When the user needs detailed tabular data beyond the visual summary (e.g. stakeholder-level holdings, specific share counts), fetch both views:

fetch("cap_table:get:cap_table_by_share_class", {"corporation_id": corporation_id})
fetch("cap_table:get:cap_table_by_stakeholder", {"corporation_id": corporation_id, "detail": "full"})

Key Fields

From list_accounts:

• id: format corporation_pk:<id> — extract the number for company-level commands
• accountType: "company" accounts work with all commands; "portfolio" and "investment firm" are organizations, not companies
• name: company display name

Workflow

Step 1 — Get Accounts

Call list_accounts to get all accessible entities.

Step 2 — Filter Accounts

Filter to the relevant account type (company, fund, investment firm, law firm, portfolio). Extract corporation_id from each account's id field (strip the corporation_pk: or organization_pk: prefix).

Step 3 — Fetch Data (parallel)

Issue ALL fetch calls for ALL companies in a single response — do NOT loop company-by-company. The fetch tool has readOnlyHint=true, so parallel calls execute concurrently.

For example, to compare option pools across 5 companies, issue all 5 fetch calls at once:

fetch("cap_table:get:cap_table_by_share_class", {"corporation_id": 1})
fetch("cap_table:get:cap_table_by_share_class", {"corporation_id": 2})
fetch("cap_table:get:cap_table_by_share_class", {"corporation_id": 3})
... (all companies)

Step 4 — Aggregate and Present

Aggregate and present the results.

Single-Company Presentation

DO NOT use this section if you called cap_table_chart. The MCP App tool renders its own visual (interactive in desktop clients, ASCII _terminal_fallback in terminal clients) — your job is then limited to 2–3 sentences of commentary, per the Routing section above. Re-rendering tables and bar charts on top of the chart tool's output produces duplicate, clashing content in the user's view.

Use this section only when:

• The user explicitly asked for detailed raw numbers / tables / specific share counts that the chart doesn't expose, OR
• cap_table_chart is unavailable in the current client (rare — the tool provides its own terminal fallback), OR
• The request is multi-company (per-company chart calls are too noisy; a cross-company table is clearer).

In those cases only, present in this order:

1. Summary line: total outstanding shares, total fully diluted shares, total cash raised
2. Share class table: share class name, outstanding shares, outstanding %, FD shares, FD %, cash raised
3. Option pool: authorized vs issued/outstanding, available shares and %
4. Top stakeholders table: name, outstanding shares, outstanding %, FD %, cash raised
5. ASCII bar chart (fallback only — cap_table_chart already renders a better one when called)

ASCII bar chart recipe (fallback only):

1. Collect each stakeholder's fully diluted % (or outstanding % if FD not available)
2. Find the max value — that stakeholder gets 40 █ blocks
3. All others: bar_width = round(pct / max_pct * 40), minimum 1 block
4. Left-align labels in a fixed-width column (pad to the longest label length + 2 spaces)
5. Immediately after the label padding, place the █ blocks — no spaces between label and blocks
6. After the blocks, one space then the percentage

Example:

Ownership (Fully Diluted)

Option Pool          ████████████████████████████████████████  71.8%
Lead Investor        ████████                                   7.8%
Founder A            ████                                       4.0%
Founder B            ████                                       3.9%
Other Investor       ███                                        2.6%
Others               ████                                       9.9%

Example: Find Expiring 409As

1. list_accounts → get all corporation_pk accounts
2. Issue ALL fetch calls in a single response (parallel):
   fetch("cap_table:get:409a_valuations", {"corporation_id": 1})
   fetch("cap_table:get:409a_valuations", {"corporation_id": 2})
   ... (all companies at once)
3. For each result, check if the most recent expiration_date is within 90 days of today
4. Present:

Example: Portfolio Option Pool Health

1. list_accounts → get all corporation_pk accounts
2. Issue ALL fetch calls in a single response (parallel):
   fetch("cap_table:get:cap_table_by_share_class", {"corporation_id": 1})
   fetch("cap_table:get:cap_table_by_share_class", {"corporation_id": 2})
   ... (all companies at once)
3. Extract option plan available_ownership percentage
4. Flag companies with available pool < 5%

Gates

Required inputs: None — portfolio enumeration is automatic.

AI computation: Yes — cross-company comparisons, red flag detection, and health assessments are AI-derived when querying multiple companies. Trigger the AI computation gate (see carta-interaction-reference §6.2) before outputting any cross-company analysis or health assessments.

Subagent prohibition: Not applicable.

Presentation

Format: Tables with company names; single-company queries include an ASCII bar chart (see Workflow).

BLUF lead: For single-company: lead with total outstanding shares, fully diluted count, and total cash raised. For multi-company: lead with count summary ("3 of 12 companies need attention").

Sort order: Multi-company results sorted by urgency/severity (most critical first). Single-company tables sorted by FD % descending.

Date format: MMM d, yyyy (e.g. "Jan 15, 2026").

• Always show company name alongside the data
• Group results: "needs attention" vs "healthy"
• Include a count summary: "3 of 12 companies need attention"

Caveats

• Portfolio data reflects separate API calls per company, not a single atomic snapshot. Even with as_of_date, each company's fetch is independent — state can diverge if data changes mid-loop.
• Companies with restricted permissions may have incomplete data
• Rate limit: maximum 20 companies per invocation — don't call 50+ companies at once; ask the user to narrow down if the list is large
• Only corporation_pk accounts work with company-level commands (cap table, grants, SAFEs, valuations). organization_pk accounts are portfolios/firms.
• Some companies may return errors (permissions, setup state) — skip them gracefully and note which ones failed