precedent
juw12/precedent
Checks an AI coding agent's "I can't" and "done" claims against evidence.
- tools
- 5
- transport
- STDIO
- last updated
- Nov 13, 2026
Tools
5 toolsPublic tool metadata for what this MCP can expose to an agent.
find_precedentSearch past agent sessions, shell history and git for an action that previously worked on a similar task.
Search past agent sessions, shell history and git for an action that previously worked on a similar task.
No parameter schema in public metadata yet.
review_replyChecks an agent's reply for give-ups without evidence and unchecked 'done' claims.
Checks an agent's reply for give-ups without evidence and unchecked 'done' claims.
No parameter schema in public metadata yet.
record_failureRecords a failed attempt so repeated errors are detected and the agent is told to change route.
Records a failed attempt so repeated errors are detected and the agent is told to change route.
No parameter schema in public metadata yet.
check_test_editChecks a proposed edit for test weakening such as skip, xfail, .only, assert True, removed assertions or deleted test files.
Checks a proposed edit for test weakening such as skip, xfail, .only, assert True, removed assertions or deleted test files.
No parameter schema in public metadata yet.
check_commandChecks a shell command against the guard rules for destructive or corner-cutting operations.
Checks a shell command against the guard rules for destructive or corner-cutting operations.
No parameter schema in public metadata yet.
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precedent
Stop false "I can't"s and unchecked "done"s in your AI coding agents.
Enforced automatically in Claude Code, Codex CLI, Gemini CLI, OpenCode and GitHub Copilot CLI; available as MCP tools plus rules in Cursor, Windsurf, VS Code and Claude Desktop.
You've seen this: the agent says "I can't do that", you reply "you did it before", and suddenly it works. The capability was there all along. What it lacked was a precedent.
precedent finds that precedent automatically, from all your agents'
history, before the agent gives up. It also makes sure a pushed agent never
fakes success to please you.
Before / after
Without precedent:
You: convert report.xlsx to csv
Agent: Sorry, I can't convert Excel files in this environment.
With precedent, the agent's give-up is sent back with this (real hook output):
Details
- Repository
- github.com/juw12/precedent
- Website
- github.com/juw12/precedent
- Category
- AI & LLM Tools
- Package
https://github.com/juw12/precedent/releases/download/mcp-v3.3.0/precedent.mcpb- Transport
- STDIO
- Registry
- MCP registry, active
