Ratio Analysis Agent Skill

Financial Ratio Analysis

Quantitative skill computing 6 categories of financial ratios from XBRL financial data. Cross-company comparison within sector. References WallStreetPrep and CFI professional ratio interpretation standards.

Preflight

Run the canonical pre-flight sequence — MCP health probe, ticker resolution, workspace style.md override, memory load, and coverage check. See contracts/preflight.md.

get_realtime_quote availability : If get_realtime_quote is not yet deployed in the MCP surface, use search_earnings_calendar for PE/earnings data and flag valuation ratios as "current price unavailable — using latest reported data." Prompts user for current stock price as manual fallback.

Include the X-Agentii-Trace header on every tool call per contracts/x-agentii-trace-header.md.

Triggers

• analyze financial ratios for {ticker}
• ratio analysis {ticker}
• compute profitability ratios {ticker}
• liquidity analysis {ticker}
• leverage analysis {ticker}
• efficiency ratios {ticker}
• valuation ratios {ticker}
• DuPont analysis {ticker}
• cross-company ratio comparison {ticker}
• compare {ticker} ratios to peers

Defaults

| Parameter | Default | Notes |

|-----------|---------|-------|

| lookback_quarters | 4 | Trailing 4 quarters for current ratios |

| include_peers | true | Cross-company comparison within sector |

| ratio_categories | all | profitability, liquidity, leverage, efficiency, valuation, growth |

Methodology

Retrieval Scope

structured_only — this skill computes ratios from XBRL financial data and real-time price data. No unstructured document search required. All data sources are queryable via agentii MCP tools.

Retrieval Strategy

See contracts/retrieval.md for the canonical decision tree; skill-specific retrieval detail is in references/methodology.md.

Temporal Scope

Default: 4 fiscal quarters (max 12). Ratio analysis uses trailing 4 quarters for current snapshot; up to 12 quarters for trend analysis.

Tool Allowlist

See frontmatter allowed_tools. search_xbrl_facts is the primary data source for financial statement line items. get_realtime_quote provides current stock price for valuation ratios (P/E, P/B, P/S). search_companies enables peer identification for cross-company comparison.

Protocol

Step-by-step execution detail is in references/methodology.md.

Ratio Definitions

Full ratio formula definitions are in references/methodology.md.

Output File

Write the final deliverable to {ticker}/{YYYY-MM-DD_HHMM}_ratio-analysis_{affix}.md . Example affixes: profitability, liquidity-leverage, peer-comparison.

Output Structure

The deliverable is a structured markdown report written to the path in ## Output File. Full section-by-section template (headings, tables, and field definitions) lives in references/output-structure.md. Required elements:

• Executive Summary — headline conclusions (≤200 words).
• Core analysis sections — per this skill's methodology and analyst modes.
• Data classification — tag findings [FACT] / [DEDUCTED] / [VIEW] per contracts/snapshot-synthesis.md.
• Coverage Gaps & Citations — inline /v/ citations are PRIMARY (immediately after each fact); the bottom Citations section is a non-duplicative roll-up index.
• Output frontmatter — emit the FR-090 structured block per contracts/output-frontmatter-schema.md.

Citations & memory: follow contracts/citation-and-memory.md — ≥1 citation per 200 words; every material fact, table row, and metric is immediately followed by its inline clickable https://agentii.ai/v/{ticker}/{citation_id}/{N} link; a bottom Citations section provides a non-duplicative roll-up index; the closing TUI reply includes a compact Key Citations list (headline 5–10 facts) of clickable /v/ URLs; and append the run to agentii.md per contracts/agentii-md-schema.md.

Tool Fallbacks

Per-tool failure modes and fallback actions are tabulated in references/tool-fallbacks.md.

Memory & Snapshot

• Memory load (pre-flight): load prior workspace context for the ticker before retrieval — see contracts/memory-load.md.
• Structured output frontmatter: emit the FR-090 block (key_metrics, conclusions, facts_count, deducted_count, views_count, citation_count) per contracts/output-frontmatter-schema.md.
• Snapshot synthesis: after writing the deliverable, update the two-tier snapshot and classify findings as [FACT]/[DEDUCTED]/[VIEW] — see contracts/snapshot-synthesis.md.
• Session archival: record the run under sessions/{YYYY-MM-DD}/ and update sessions/INDEX.md per contracts/session-format.md.

Final Summary (TUI)

End the closing chat reply with a compact Key Citations list (headline 5–10 facts), each a clickable https://agentii.ai/v/{ticker}/{citation_id}/{N} link, so the user can cmd+click straight to the exact SEC page. See contracts/citation-and-memory.md.

Error Handling

| Failure Mode | Detection | Action | User-Facing Message |

|-------------|-----------|--------|---------------------|

| Missing data | XBRL returns empty for key concepts | Widen date range and retry once | "No financial data available for {ticker} in requested window." |

| Non-USD currency | unit field is not USD | Annotate with ISO 4217 code | "⚠ {ticker} reports in {currency}. Ratios computed in reporting currency." |

| Peer data incomplete | <3 peers have comparable data | Reduce peer set; flag incomplete peers | "Cross-company comparison based on {n} of {m} peers with complete data." |

| MCP unreachable | Preflight probe fails | Halt with actionable error | "agentii data plane unreachable; check connection." |