Positioning

One-liner: PDF answers with page-level proof.

• User: an agent or developer who must answer from a PDF that cannot be uploaded.
• Job: read, search, compare and verify a local PDF with citeable page-level evidence.
• Promise: one call returns structured text, tables, OCR, crops and page/cell/bbox locators a human can check; unknown facts land in gaps.
• Identity: package @sylphx/citra, bin citra, MCP io.github.SylphxAI/citra, site https://sylphxai.github.io/citra/.
• Companion tools: Citra, Iris, Cue, Spine, Locus and Lookout are independent products composed through public MCP and SDK contracts.

See vision.md and capabilities.md for the destination and the owned capabilities. TOOL_SURFACE.md is the tool policy and EVIDENCE_CONTRACT.md is the result contract.