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docs/tai.1
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docs/tai.1
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.TH TAI 1 "2026-05-11" "tai 0.4.0" "User Commands"
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.SH NAME
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tai \- read-only Linux troubleshooting assistant with SSH diagnostics and AI analysis
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.SH SYNOPSIS
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.B tai
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.RI [ GLOBAL_OPTIONS ]
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.B run
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.I ISSUE
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.RI [ RUN_OPTIONS ]
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.PP
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.B tai
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.B history
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.RI [ HISTORY_OPTIONS ]
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.PP
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.B tai
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.B runbooks
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.B sync
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.RI [ SYNC_OPTIONS ]
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.PP
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.B tai
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.B runbooks
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.B list
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.RI [ LIST_OPTIONS ]
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.PP
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.B tai
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.B runbooks
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.B add
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.I FILE
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.RI [ ADD_OPTIONS ]
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.SH DESCRIPTION
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.B tai
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connects to Linux hosts over SSH, collects read-only diagnostics, and can ask an OpenAI-compatible model for grounded analysis.
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.PP
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Remote runbook (playbook) sources can be local paths, SSH URIs, or HTTP/HTTPS webroots.
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Downloaded runbook content is never executed. It is stored as text and parsed for retrieval context only.
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.SH COMMANDS
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.SS run
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Main troubleshooting entrypoint.
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.TP
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.BI --host " HOST"
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Target host to troubleshoot.
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.TP
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.BI --port " PORT"
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SSH port (default: 22).
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.TP
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.BI --path " PATH"
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Target path to inspect. Repeatable.
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.TP
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.BI --identity-file " FILE"
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SSH private key path.
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.TP
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.BI --jump-host " HOST"
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SSH bastion/jump host.
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.TP
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.B --ignore-ssh-config
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Ignore ~/.ssh/config and rely only on CLI options.
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.TP
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.B --probe / --no-probe
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Enable or disable connectivity probe.
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.TP
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.B --collect / --no-collect
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Collect baseline diagnostics.
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.TP
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.B --analyze / --no-analyze
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Send diagnostics to AI for analysis.
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.TP
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.B --interactive / --no-interactive
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Interactive follow-up mode.
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.TP
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.BI --ai-host " URL"
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OpenAI-compatible AI backend URL.
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.TP
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.BI --model " NAME"
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Model name for analysis.
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.TP
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.BI --ai-key " KEY"
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API key for AI backend.
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.TP
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.BI --ai-timeout-seconds " SECONDS"
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Timeout for AI requests.
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.TP
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.BI --ai-max-tokens " TOKENS"
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Max completion tokens.
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.TP
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.BI --embed-model " NAME"
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Embedding model for RAG.
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.TP
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.B --no-rag
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Disable RAG retrieval.
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.TP
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.B --rag-debug / --no-rag-debug
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Print retrieval debug output.
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.TP
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.BI --runbooks " STORE"
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Runbook store path or remote Chroma URL.
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.TP
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.BI --runbooks-user " USER"
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Runbook store login/user for remote Chroma URLs.
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.TP
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.BI --runbooks-password " PASSWORD"
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Runbook store password for remote Chroma URLs.
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.TP
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.BI --history-db " TARGET"
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History DB target: SQLite path/URL or PostgreSQL DSN.
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.TP
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.BI --history-db-user " USER"
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History DB login/user for external database URLs.
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.TP
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.BI --history-db-password " PASSWORD"
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History DB password for external database URLs.
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.TP
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.B --history / --no-history
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Enable or disable history DB reads/writes.
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.TP
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.BI --output-file " FILE"
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Write analysis to file.
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.TP
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.BI --output-format " FORMAT"
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Output format: markdown or json.
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.TP
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.BI --log-file " FILE"
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Optional JSONL event log path.
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.TP
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.BI --env-file " FILE"
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Optional dotenv file used to resolve DB credentials.
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.SS history
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Search/list indexed troubleshooting history.
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.TP
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.BI --query " TEXT"
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Optional keyword search in issue/summary.
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.TP
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.BI --host " HOST"
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Filter by host.
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.TP
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.BI --limit " N"
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Maximum sessions to show.
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.TP
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.BI --export " FILE"
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Export results as Markdown.
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.TP
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.BI --history-db " TARGET"
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History DB target: SQLite path/URL or PostgreSQL DSN.
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.TP
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.BI --history-db-user " USER"
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History DB login/user for external database URLs.
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.TP
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.BI --history-db-password " PASSWORD"
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History DB password for external database URLs.
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.TP
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.BI --env-file " FILE"
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Optional dotenv file used to resolve DB credentials.
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.SS runbooks sync
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Index all runbooks from source path.
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.TP
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.BI --path " SOURCE"
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Runbook source: local directory, ssh://host/path, or http(s) webroot URL.
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.TP
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.BI --store " TARGET"
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ChromaDB store path or remote URL.
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.TP
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.BI --store-user " USER"
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Runbook store login/user for remote Chroma URLs.
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.TP
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.BI --store-password " PASSWORD"
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Runbook store password for remote Chroma URLs.
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.TP
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.BI --ai-host " URL"
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OpenAI-compatible AI backend URL.
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.TP
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.BI --embed-model " NAME"
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Embedding model name.
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.TP
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.BI --ai-key " KEY"
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API key for AI backend.
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.TP
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.BI --identity-file " FILE"
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SSH private key for ssh:// source.
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.TP
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.BI --jump-host " HOST"
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SSH bastion for ssh:// source.
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.TP
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.B --ignore-ssh-config
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Ignore ~/.ssh/config for ssh:// source.
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.TP
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.BI --env-file " FILE"
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Optional dotenv file used to resolve DB credentials.
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.SS runbooks list
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List indexed runbooks.
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.TP
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.BI --store " TARGET"
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ChromaDB store path or remote URL.
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.TP
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.BI --store-user " USER"
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Runbook store login/user for remote Chroma URLs.
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.TP
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.BI --store-password " PASSWORD"
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Runbook store password for remote Chroma URLs.
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.TP
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.BI --env-file " FILE"
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Optional dotenv file used to resolve DB credentials.
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.SS runbooks add
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Index one runbook file.
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.TP
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.BI FILE
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Runbook source: local file, ssh://host/path/file.md, or HTTP/HTTPS URL ending in .md.
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.TP
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.BI --store " TARGET"
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ChromaDB store path or remote URL.
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.TP
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.BI --store-user " USER"
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Runbook store login/user for remote Chroma URLs.
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.TP
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.BI --store-password " PASSWORD"
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Runbook store password for remote Chroma URLs.
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.TP
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.BI --ai-host " URL"
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OpenAI-compatible AI backend URL.
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.TP
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.BI --embed-model " NAME"
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Embedding model name.
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.TP
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.BI --ai-key " KEY"
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API key for AI backend.
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.TP
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.BI --identity-file " FILE"
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SSH private key for ssh:// source.
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.TP
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.BI --jump-host " HOST"
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SSH bastion for ssh:// source.
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.TP
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.B --ignore-ssh-config
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Ignore ~/.ssh/config for ssh:// source.
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.TP
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.BI --env-file " FILE"
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Optional dotenv file used to resolve DB credentials.
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.SH ENVIRONMENT
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The following variables are recognized for DB credentials:
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.TP
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.B TAI_HISTORY_DB_USER
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History DB user when --history-db points to external database.
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.TP
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.B TAI_HISTORY_DB_PASSWORD
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History DB password when --history-db points to external database.
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.TP
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.B TAI_RUNBOOK_STORE_USER
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Runbook store user for remote ChromaDB.
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.TP
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.B TAI_RUNBOOK_STORE_PASSWORD
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Runbook store password for remote ChromaDB.
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.SH SECURITY NOTES
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.TP
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\(bu
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SSH diagnostics are validated against read-only command policy.
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.TP
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\(bu
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Web/SSH runbook content is never executed.
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.TP
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\(bu
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Webroot ingestion accepts only Markdown-like payloads and skips HTML/non-markdown wrappers.
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.SH FILES
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.TP
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.I ~/.tai/history.db
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Default local history database.
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.TP
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.I ~/.tai/runbooks
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Default local runbook store path.
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.SH EXAMPLES
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.PP
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Analyze with PostgreSQL history DB credentials loaded from .env:
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.PP
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.nf
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$ tai run "sshd auth failed" --host bastion01 --collect --analyze \
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--history-db postgresql://db.internal:5432/tai --env-file ./.env
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.fi
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.PP
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Sync runbooks from HTTPS webroot to remote ChromaDB:
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.PP
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.nf
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$ tai runbooks sync --path https://kb.example/runbooks/ \
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--store https://chroma.internal:8443 --env-file ./.env
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.fi
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.SH SEE ALSO
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.BR README.md ,
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.BR docs/ARCHITECTURE.md
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