trueline-mcp
trueline-mcp is an MCP plugin for AI coding agents that performs hash-verified, targeted file reads and edits. It reduces token usage by using AST-based outlines and range reads/search, and prevents silent corruption by requiring content hashes and rejecting edits when the target content or line ranges don't match what was read.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Strong safety design at the edit layer: hash verification and rejection when content/line targets don’t match, plus concurrent-change detection. Authentication/scoping details are not described (likely local/tooling context). TLS and secret-handling specifics are not evidenced in the provided content. Dependencies include tree-sitter/web-tree-sitter/zod; no CVE status or pinning/lockfile details provided.
⚡ Reliability
Best When
When an AI coding agent must make accurate edits across larger files or multiple files, where minimizing token spend and avoiding edit corruption are critical.
Avoid When
When only small, non-critical edits are needed and the overhead of MCP round trips/verification is undesirable, or when your environment cannot run MCP tooling.
Use Cases
- • Agent-assisted code modifications with reduced context/token usage
- • Verified automated refactors using AST outlines and semantic change summaries
- • Safe multi-file editing sessions with atomic batched edits
- • Guardrails against hallucinated edits via checksum-based verification
Not For
- • Use cases that require an HTTP/REST API service for remote invocation
- • Environments where agents cannot install or run an MCP plugin
- • Workflows needing server-side hosting of the tool (this appears to be a client/agent-side plugin)
Interface
Authentication
No authentication mechanism is described for the MCP plugin itself. It likely relies on the host agent/platform’s connection and local filesystem access patterns rather than an external auth layer.
Pricing
No pricing information present in the provided content; appears to be open-source tooling.
Agent Metadata
Known Gotchas
- ⚠ Agents must follow the plugin’s hash-verified edit workflow (echoing old text is blocked when hooks are available).
- ⚠ Edits may be rejected if the file changed between read/search and edit (concurrent edits or build steps).
- ⚠ Without platform hooks/instructions-only setups, compliance is lower (~60% claimed), increasing the chance of tool misuse and subsequent failures.
Alternatives
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Scores are editorial opinions as of 2026-03-30.