--- title: "prismor vs rm-safely" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/prismorsec-prismor-vs-zdk-rm-safely" tools: ["prismorsec-prismor", "zdk-rm-safely"] --- # prismor vs rm-safely *GraphCanon updated Sep 20, 2026* ## Verdict Pick prismor if prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex; pick rm-safely if rm-safely. [prismor](https://prismor.dev) reports 343 GitHub stars, 35 forks, and 46 open issues, last pushed Sep 11, 2026. [rm-safely](https://github.com/zdk/rm-safely) has 102 stars, 3 forks, and 0 open issues, last pushed May 30, 2026. Figures are from public GitHub metadata via [prismor's repository](https://github.com/PrismorSec/prismor) and [rm-safely's repository](https://github.com/zdk/rm-safely). | | [prismor](/tools/prismorsec-prismor.md) | [rm-safely](/tools/zdk-rm-safely.md) | | --- | --- | --- | | Tagline | Runtime firewall for AI agents to prevent rogue tool calls and security breaches | rm safely - a safety net for rm | | Stars | 343 | 102 | | Forks | 35 | 3 | | Open issues | 46 | 0 | | Language | Python | Shell | | Adopt for | Prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex. | rm-safely | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0, permissive open-source license allowing free use and distribution under certain conditions. | MIT | | Categories | AI Agents, Evaluation & Observability | Developer Tools | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [prismor](/tools/prismorsec-prismor.md) | [rm-safely](/tools/zdk-rm-safely.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Slowing (36%) | | Days since push | 0d | 104d | | Open issues (now) | 46 | 0 | | Stars delta | +63 (30d) | +1 (30d) | | Open issues delta | +34 (30d) | 0 (30d) | | Owner type | Organization | User | | Full report | [trust report](/tools/prismorsec-prismor/trust.md) | [trust report](/tools/zdk-rm-safely/trust.md) | ## Decision facts: prismor - **Pricing:** freemium - Free with a commercial license for advanced features. - **Requirements:** Min 1 GB RAM - **Adopt for:** Prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex. - **License detail:** Apache-2.0, permissive open-source license allowing free use and distribution under certain conditions. ## Decision facts: rm-safely - **Adopt for:** rm-safely ## Choose when ### Choose prismor if… - prismor is primarily Python; rm-safely is Shell. - License: prismor is Apache-2.0, rm-safely is MIT. - Pricing: Free with a commercial license for advanced features.. - Requirements: Min 1 GB RAM. - Tags unique to prismor: agent-security, ai-agents, llm-security, prompt-injection. - Also covers AI Agents, Evaluation & Observability. - When you need a dedicated firewall for AI tools to block unauthorized calls. ### Choose rm-safely if… - rm-safely is primarily Shell; prismor is Python. - License: rm-safely is MIT, prismor is Apache-2.0. - Tags unique to rm-safely: backup, bash, command-line, filesystem. - Also covers Developer Tools. - When you want to ensure accidental file deletions can be recovered, rm-safely provides an essential safety net for Unix-like systems. ## When NOT to use prismor - Avoid if you do not use supported frameworks like Claude Code or Codex, as it might lack coverage. - Not suitable if you prioritize open-source contributions over runtime protection. ## When NOT to use rm-safely - Avoid if you are working within environments where strict compliance with standard Unix commands is required, as rm-safely modifies this behavior. - Do not use in scenarios where the overhead of additional safeguards for file removal is unnecessary or unwanted for operational efficiency reasons. ## Common questions ### What is the difference between prismor and rm-safely? prismor: Runtime firewall for AI agents to prevent rogue tool calls and security breaches. rm-safely: rm safely - a safety net for rm. See the comparison table for live GitHub stats and shared categories. ### When should I choose prismor over rm-safely? Choose prismor over rm-safely when prismor is primarily Python; rm-safely is Shell; License: prismor is Apache-2.0, rm-safely is MIT; Pricing: Free with a commercial license for advanced features.; Requirements: Min 1 GB RAM; Tags unique to prismor: agent-security, ai-agents, llm-security, prompt-injection; Also covers AI Agents, Evaluation & Observability; When you need a dedicated firewall for AI tools to block unauthorized calls. ### When should I choose rm-safely over prismor? Choose rm-safely over prismor when rm-safely is primarily Shell; prismor is Python; License: rm-safely is MIT, prismor is Apache-2.0; Tags unique to rm-safely: backup, bash, command-line, filesystem; Also covers Developer Tools; When you want to ensure accidental file deletions can be recovered, rm-safely provides an essential safety net for Unix-like systems. ### When should I avoid prismor? Avoid if you do not use supported frameworks like Claude Code or Codex, as it might lack coverage. Not suitable if you prioritize open-source contributions over runtime protection. ### When should I avoid rm-safely? Avoid if you are working within environments where strict compliance with standard Unix commands is required, as rm-safely modifies this behavior. Do not use in scenarios where the overhead of additional safeguards for file removal is unnecessary or unwanted for operational efficiency reasons. ### Is prismor or rm-safely more popular on GitHub? prismor has more GitHub stars (343 vs 102). Stars measure visibility, not whether either tool fits your constraints. ### Are prismor and rm-safely open source? Yes - both are open-source projects on GitHub (prismor: Apache-2.0, rm-safely: MIT). ### Where can I find alternatives to prismor or rm-safely? GraphCanon lists graph-backed alternatives at [prismor alternatives](/tools/prismorsec-prismor/alternatives) and [rm-safely alternatives](/tools/zdk-rm-safely/alternatives) ([prismor markdown twin](/tools/prismorsec-prismor/alternatives.md), [rm-safely markdown twin](/tools/zdk-rm-safely/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/prismorsec-prismor-vs-zdk-rm-safely.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, prismor or rm-safely? prismor: Very active. rm-safely: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for prismor and rm-safely? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [prismor trust report](/tools/prismorsec-prismor/trust); [rm-safely trust report](/tools/zdk-rm-safely/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=prismorsec-prismor`](/api/graphcanon/graph?tool=prismorsec-prismor) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_