opencode

Evidence: AGENTS.md describes a permission system (plan agent denies file edits by default, bash commands require confirmation), but lacks specific permission configuration details; SECURITY.md explicitly states no sandbox, permission system is a UX feature, not security isolation. User confirmation is mentioned for plan agent, but not detailed for all scenarios. Data flow transparency is detailed in CONTEXT.md (e.g., Session History, Context Source), but external data flow is not specified. Sensitive data handling is not explicitly mentioned. Dependency security: package.json has patchedDependencies and trustedDependencies, but no vulnerability scanning or audit evidence. External effects: SECURITY.md mentions server mode requires password, but not detailed. Rollback is not mentioned. Source attribution: README and CONTRIBUTING provide maintainer info, but publisher is unverified. Deductions: incomplete permission system description, user confirmation only partial, data flow transparency lacks external flow, sensitive data handling not explicit, dependency security lacks audit evidence, external effects limited, rollback missing, source attribution limited by unverified publisher.

Evidence: AGENTS.md and CONTEXT.md are internally consistent, with clear terminology and rules. Dependency availability: package.json lists many dependencies, but no availability guarantees or mirrors. Failure messages: CONTEXT.md describes error handling (e.g., SessionNotFoundError), but no user-friendly failure message examples. Deductions: dependency availability lacks guarantees, failure messages limited.

Evidence: README in multiple languages provides installation and usage instructions, covering various platforms and package managers, broad audience. Capability boundaries are clearly described in AGENTS.md and CONTEXT.md (e.g., build vs plan agent permissions). Trigger precision: AGENTS.md provides specific commands and rules (e.g., branch naming, commit format). Environment fit: README provides multiple installation methods, CONTEXT.md describes PTY environment. Deductions: capability boundaries not covering all scenarios, trigger precision may be imprecise for some rules.

Evidence: Information architecture is clear, AGENTS.md, CONTEXT.md, CONTRIBUTING.md have distinct roles. Install notes are detailed in README, covering multiple platforms. Naming stability: AGENTS.md specifies branch and commit naming conventions. Examples and FAQ provided in README and CONTRIBUTING. Known limitations explicitly stated in SECURITY.md (e.g., no sandbox). License is MIT, clear. Versioning changelog not provided, but package.json has version info. Maintenance responsibility is clear in CONTRIBUTING. Deductions: versioning changelog missing, maintenance responsibility clear but publisher unverified.

Evidence: Output usability: README provides clear installation and usage examples, CONTEXT.md defines terminology for understanding. Marginal value: as open-source coding agent, provides various features (e.g., agents, SDK). Cost-benefit: no performance or resource consumption data. Deductions: cost-benefit lacks data support.

Evidence: Claim traceability: claims in README and CONTEXT.md are documented, but no test or verification evidence. Cross-source corroboration: multilingual READMEs are consistent, but no external verification. Fact-inference separation: documentation distinguishes description and design intent, but not explicitly labeled. Deductions: lack of test evidence, limited cross-source corroboration, fact-inference separation not explicit.