Releases·Tool Release
Show HN: Replay – Audit silent prompt cache misses in AI agent transcripts
A developer released Replay, a free, source-available Go CLI that reads local AI agent transcripts (Claude Code, Cursor, Aider), replays them against reverse-engineered provider caching state-machines, and pinpoints where prompt caches broke and how much it cost. It matters to practitioners because cache misses silently re-bill entire conversation histories at cold-write prices with no errors in logs.
1 engagement1 sourceMon, Sep 14, 2026, 02:38 AM
AI Overview
- Replay is a free, zero-telemetry Go CLI (BUSL 1.1) that reads on-disk Claude Code, Cursor, and Aider transcripts to find the exact turn a prompt cache broke and the re-billed cost
- Subcommands compute avoidable re-billing across logs, pinpoint cache sharding causes, rank context bloat, suggest prompt restructuring, and simulate model-switch costs with cold-start prefixes
- Developer keeps 76 real past defects frozen as re-runnable mutants for stability testing; code is on GitHub with an install script at replay.doctor
Related
Social·Community
Compacted while idle, before the prompt cache expired
A user found that Claude Code ran /compact on its own after roughly an hour of inactivity, apparently to compact context before the prompt cache expired and avoid an expensive cache miss. The post asks whether this idle-time compaction behavior is new, suggesting it may be a recent change to Claude Code.
A user found that Claude Code ran /compact on its own after roughly an hour of inactivity, apparently to compact context before the prompt cache expired and avoid an expensive cache miss. The post asks whether this idle-time compaction behavior is new, suggesting it may be a recent change to Claude Code.
24 engagement1 sourceredditSat, Oct 10, 2026, 09:04 PM
Releases·Tool Release
agentsweep CLI scans AI coding agent history files for leaked secrets
A new open-source CLI tool called agentsweep scans history files of AI coding agents (Codex, Cursor, Claude Code, Cline, Aider) for plaintext secrets like API keys, DB URLs, and crypto seed phrases. It uses ~191 detection rules from gitleaks plus a dedicated BIP-39 seed phrase detector, addressing a security risk where pasted secrets persist in agent context and can be re-exposed.
A new open-source CLI tool called agentsweep scans history files of AI coding agents (Codex, Cursor, Claude Code, Cline, Aider) for plaintext secrets like API keys, DB URLs, and crypto seed phrases. It uses ~191 detection rules from gitleaks plus a dedicated BIP-39 seed phrase detector, addressing a security risk where pasted secrets persist in agent context and can be re-exposed.
4 engagement2 sourcesredditSat, Jul 11, 2026, 07:07 PM
Releases·Tool Release
Developer builds Baton CLI to transfer sessions between 9 AI coding agents
A developer created Baton, an open-source Rust CLI that converts session files between nine coding agents (Codex, opencode, Gemini CLI, Cursor, Zed, Aider, Cline, Continue, Claude Code), allowing users to resume conversations after hitting usage limits without re-explaining context. The tool was itself mostly written by Claude Code, including the parser for its own session format.
A developer created Baton, an open-source Rust CLI that converts session files between nine coding agents (Codex, opencode, Gemini CLI, Cursor, Zed, Aider, Cline, Continue, Claude Code), allowing users to resume conversations after hitting usage limits without re-explaining context. The tool was itself mostly written by Claude Code, including the parser for its own session format.
5 engagement2 sourcesredditSun, Jul 12, 2026, 08:26 PM
Releases·Tool Release
sandbox-cli launches public beta for secure multi-agent coding in Docker
sandbox-cli, a tool that runs coding agents like Claude Code, Codex, Gemini, Cursor, and Aider inside disposable Docker containers, is now in public beta. It mounts only the user's project, keeping home directories, SSH keys, cloud credentials, and browser cookies on the host. Features include dry-run mode, worktrees for parallel agents, a credential broker, egress allowlist, and live resource stats.
sandbox-cli, a tool that runs coding agents like Claude Code, Codex, Gemini, Cursor, and Aider inside disposable Docker containers, is now in public beta. It mounts only the user's project, keeping home directories, SSH keys, cloud credentials, and browser cookies on the host. Features include dry-run mode, worktrees for parallel agents, a credential broker, egress allowlist, and live resource stats.
2 engagement1 sourceredditSat, Jul 25, 2026, 08:57 PM
Products·launched
Feature Explorer: interactive branch change explainer for coding agents
Feature Explorer is a tool that analyzes the current git branch and generates an interactive HTML page showing a workflow graph of changes, where each node links to actual source code and explains what it does and why it exists. It integrates with coding agents like Claude Code, Cursor, Copilot, Aider, and Codex via a simple npx command, helping developers understand complex code changes quickly.
Feature Explorer is a tool that analyzes the current git branch and generates an interactive HTML page showing a workflow graph of changes, where each node links to actual source code and explains what it does and why it exists. It integrates with coding agents like Claude Code, Cursor, Copilot, Aider, and Codex via a simple npx command, helping developers understand complex code changes quickly.
2 engagement1 sourceredditWed, Aug 12, 2026, 08:16 AM