# sympy_ones Create a matrix of ones. Agent View of the PolicyLayer registry record for `sympy_ones`. HTML page: https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-ones ## Facts - Tool: `sympy_ones` - Server: Pypi:mcp Sympy (`pypi:mcp-sympy`) — https://policylayer.com/tools/io-github-daedalus-mcp-sympy.md - Install: `npx -y pypi:mcp-sympy` - Homepage: https://github.com/daedalus/mcp-sympy - Risk category: Write (Medium risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "sympy_ones", "arguments": {} } } ``` ## Why sympy_ones is rated Medium The tool creates a new symbolic mathematics object (a matrix) in memory, which is a write-like operation. However, it has minimal severity because: (1) it only creates reversible mathematical data structures, (2) no persistent state is modified, (3) no external systems are affected, (4) the operation is deterministic and safe. It does not execute arbitrary code, delete data, or cause financial impact. From the tool's own definition: "Tool name 'sympy_ones' and description 'Create a matrix of ones' indicate the tool creates and returns a new mathematical object (a matrix). This is a data creation operation with no side effects beyond the returned value." ## Use case AI agents use sympy_ones to create or update resources in Pypi:mcp Sympy, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Pypi:mcp Sympy environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Pypi:mcp Sympy: ```json { "version": "1", "default": "deny", "tools": { "sympy_ones": { "limits": [ { "counter": "sympy_ones_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Pypi:mcp Sympy (170) - `sympy_cancel` — Destructive — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-cancel.md - `sympy_abs` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-abs.md - `sympy_And` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-and.md - `sympy_apart` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-apart.md - `sympy_asin` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-asin.md - `sympy_cbrt` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-cbrt.md - `sympy_cosh` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-cosh.md - `sympy_derivative` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-derivative.md - `sympy_diff` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-diff.md - `sympy_dsolve` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-dsolve.md - `sympy_erf` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-erf.md - `sympy_evalf` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-evalf.md - `sympy_evaluate` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-evaluate.md - `sympy_exp` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-exp.md - `sympy_expand` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-expand.md - `sympy_expand_complex` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-expand-complex.md - `sympy_factor` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-factor.md - `sympy_factorial` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-factorial.md - `sympy_factorint` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-factorint.md - `sympy_finiteset` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-finiteset.md - `sympy_float` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-float.md - `sympy_gamma` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-gamma.md - `sympy_gcd` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-gcd.md - `sympy_groebner` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-groebner.md - `sympy_horner` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-horner.md - `sympy_integrate` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-integrate.md - `sympy_lcm` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-lcm.md - `sympy_limit` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-limit.md - `sympy_log` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-log.md - `sympy_log_base` — Execute — https://policylayer.com/tools/io-github-daedalus-mcp-sympy/sympy-log-base.md - …and 140 more: https://policylayer.com/tools/io-github-daedalus-mcp-sympy.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-daedalus-mcp-sympy · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-daedalus-mcp-sympy