OpenAF mini-a

Mini-A is a minimalist autonomous agent that uses LLMs, shell commands and/or MCP servers to achieve user-defined goals. Simple, flexible, and easy to use as a library, CLI tool, or embedded interface.

⚡ New Performance Optimizations! Mini-A now includes automatic optimizations that reduce token usage by 40-60% and costs by 50-70% with zero configuration. Learn more →

flowchart LR
User((You)) -->|Goal & Parameters| MiniA[Mini-A Orchestrator]
MiniA -->|Reasoning & Planning| LLM["LLM Models (Main & Low-Cost)"]
MiniA -->|Tool Invocations| MCP["MCP Servers (Time, Finance, etc.)"]
MiniA -->|Shell Tasks| Shell["Optional Shell"]
MCP -->|Structured Data| MiniA
Shell -->|Command Output| MiniA
LLM -->|Thoughts & Drafts| MiniA
MiniA -->|Final Response| User
classDef node fill:#2563eb,stroke:#1e3a8a,stroke-width:2px,color:#fff
classDef peripheral fill:#bfdbfe,stroke:#1d4ed8,color:#1e3a8a
class User node
class MiniA node
class LLM,MCP,Shell peripheral

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Quick Start

Two steps to use:

1. Set OAF_MODEL environment variable to the model you want to use:

   export OAF_MODEL="(type: openai, model: gpt-5-mini, key: '...', timeout: 900000, temperature: 1)"

   Optional: add OAF_LC_MODEL for a low-cost helper model and OAF_VAL_MODEL to use a dedicated validation model in deep research mode. You can also override them per run with modellc=... and modelval=....

   Use the built-in model manager when you prefer to store encrypted definitions instead of exporting raw environment variables:

   mini-a modelman=true

   The manager lets you create, import, rename, export, and delete reusable definitions that can then be exported as OAF_MODEL/OAF_LC_MODEL values or copied as raw SLON/JSON for sharing.

   For working-memory operations, launch the memory manager:

   mini-a memoryman=true usememory=true memoryuser=true

   It provides global/session memory summaries, entry inspection, search, selective delete, and age-based pruning.

2. Run the console:

   opack exec mini-a

   Type your goal at the prompt, or pass it inline:

   opack exec mini-a goal="your goal"

   If you enabled the optional alias displayed after installation, you can use mini-a ... instead.

Shell access is disabled by default for safety; add useshell=true when you explicitly want the agent to run commands.

Next Steps

Helpful first commands

• Show all console/web/planning flags and defaults:

  mini-a -h

• Run one custom slash command/skill template without entering interactive mode:

  opack exec mini-a exec="/my-command first second"

• Print starter templates for reusable console assets:

  mini-a --agent
  mini-a --skill
  mini-a --command
  mini-a --hook

exec= resolves a slash template from ~/.openaf-mini-a/commands/ or ~/.openaf-mini-a/skills/, renders placeholders, runs the resulting goal (including hooks), and exits.

Console templates and hooks

• Custom commands: ~/.openaf-mini-a/commands/*.md (extracommands=<path1>,<path2>)
• Skills: ~/.openaf-mini-a/skills/<name>/SKILL.md, ~/.openaf-mini-a/skills/<name>/SKILL.yaml|yml|json, or ~/.openaf-mini-a/skills/<name>.md|yaml|yml|json (extraskills=<path1>,<path2>).
• Hooks: ~/.openaf-mini-a/hooks/*.{yaml,yml,json} with events before_goal, after_goal, before_tool, after_tool, before_shell, after_shell (extrahooks=<path1>,<path2>)
• Agent Plugins (agent-plugins.org): plugins=<dir1,dir2> or pluginsroot(s)=<dir> — see docs/AGENT-PLUGINS.md
• Starter generators: mini-a --command, mini-a --skill, mini-a --hook, mini-a --agent
• Override the base home directory: homedir=<path> (reads .openaf-mini-a from <path> instead of ~)

See USAGE.md for full template placeholders, precedence rules, and examples.

Console productivity tips

• /show lists active parameters (/show use filters by prefix)
• /skills [prefix] lists discovered skills
• /compact [n] and /summarize [n] condense history
• /last [md] reprints the previous final answer
• /save <path> writes the previous final answer to disk
• @path/to/file inlines file content into goals; use \@token for a literal @token and \$token for a literal $token

Web UI quick start

Start the browser UI:

./mini-a-web.sh onport=8888

Then open http://localhost:8888.

For history/attachments and S3-backed history examples, see USAGE.md.

Security note: by default the web UI has no authentication — anyone who can reach the port can submit goals, and with useshell=true that is equivalent to remote code execution. Set webtoken=<secret> to require an x-mini-a-token header (or a ?token= query param, used automatically by the bundled UI) on every request, and prefer binding the port to localhost or placing it behind a reverse proxy/VPN rather than exposing it directly. Optional math rendering (KaTeX) is loaded from a public CDN, so it degrades gracefully but is unavailable in fully offline deployments.

Running in Docker

Mini-A can run in Docker containers for isolated execution and portability.

Simple Docker Usage (Recommended)

The openaf/mini-a image comes with Mini-A pre-installed for immediate use:

CLI console:

docker run --rm -ti \
-e OAF_MODEL="(type: openai, model: gpt-5-mini, key: '...', timeout: 900000)" \
openaf/mini-a

Console with MCP servers and custom rules:

docker run --rm -ti \
-e OAF_MODEL=$OAF_MODEL \
-e OAF_LC_MODEL=$OAF_LC_MODEL \
openaf/mini-a \
mcp="(cmd: 'ojob mcps/mcp-time.yaml')" \
rules="- the default time zone is Asia/Tokyo"

Console with knowledge and rules loaded from files:

docker run --rm -ti \
-e OAF_MODEL=$OAF_MODEL \
-v $(pwd):/work -w /work \
openaf/mini-a \
knowledge="$(cat KNOWLEDGE.md)" \
rules="$(cat RULES.md)"

Web interface:

docker run -d --rm \
-e OAF_MODEL="(type: openai, model: gpt-5-mini, key: '...', timeout: 900000)" \
-p 12345:12345 \
openaf/mini-a onport=12345

Web interface with streaming:

docker run -d --rm \
-e OAF_MODEL="(type: openai, model: gpt-5-mini, key: '...', timeout: 900000)" \
-p 12345:12345 \
openaf/mini-a onport=12345 usestream=true

Goal execution:

docker run --rm \
-e OAF_MODEL="(type: openai, model: gpt-5-mini, key: '...', timeout: 900000)" \
openaf/mini-a \
goal="your goal here" useshell=true

Advanced Docker Usage

For custom OpenAF installations or specific oPack combinations, use the base image:

CLI console:

docker run --rm -ti \
-e OPACKS=mini-a -e OPACK_EXEC=mini-a \
-e OAF_MODEL="(type: openai, model: gpt-5-mini, key: '...', timeout: 900000)" \
openaf/oaf:edge

Web interface:

docker run -d --rm \
-e OPACKS=mini-a -e OPACK_EXEC=mini-a \
-e OAF_MODEL="(type: openai, model: gpt-5-mini, key: '...', timeout: 900000)" \
-p 12345:12345 \
openaf/oaf:edge onport=12345

Goal execution:

docker run --rm \
-e OPACKS=mini-a \
-e OAF_MODEL="(type: openai, model: gpt-5-mini, key: '...', timeout: 900000)" \
openaf/oaf:edge \
ojob mini-a/mini-a.yaml goal="your goal here" useshell=true

See USAGE.md for comprehensive Docker examples including multiple MCPs, AWS Bedrock, planning workflows, and more.

Simple Examples

List files:

mini-a goal="list all JavaScript files in this directory" useshell=true

Using MCP servers:

mini-a goal="what time is it in Sydney?" mcp="(cmd: 'ojob mcps/mcp-time.yaml', timeout: 5000)"

mcp-web also includes http-request for direct HTTP verbs (GET, HEAD, POST, PUT, PATCH, DELETE); use readwrite=true when you need mutating verbs.

mini-a goal="inspect rust-lang.org response headers" \
mcp="(cmd: 'ojob mcps/mcp-web.yaml', timeout: 5000)"

Testing MCP servers interactively:

mini-a mcptest=true mcp="(cmd: 'ojob mcps/mcp-time.yaml')"

Aggregate MCP tools via proxy (single tool exposed):

mini-a goal="compare release dates across APIs" \
usetools=true mcpproxy=true \
mcp="[(cmd: 'ojob mcps/mcp-time.yaml'), (cmd: 'ojob mcps/mcp-fin.yaml')]" \
useutils=true

This keeps the LLM context lean by exposing a single proxy-dispatch tool even when multiple MCP servers and the Mini Utils Tool are active. For large tool payloads, proxy-dispatch can also load arguments from argumentsFile and save results to a temporary JSON resultFile (resultToFile=true) to avoid context bloat. Prefer this pattern when useutils=true (recommended) or useshell=true readwrite=true and payloads are expected to be large. See docs/MCPPROXY-FEATURE.md for a deep dive.

For some tool-calling runs with gpt-oss-120b, enabling usejsontool=true can improve reliability:

mini-a goal="what is the current time?" usetools=true mcpproxy=true usejsontool=true

This adds a compatibility shim for accidental json tool calls and feeds the payload back into Mini-A's normal action flow.

Chatbot mode:

mini-a goal="help me plan a vacation in Lisbon" chatbotmode=true

Real-time streaming:

mini-a goal="explain the history of computing" usestream=true

Installation

1. Install OpenAF from openaf.io
2. Install oPack:

   opack install mini-a

3. Set your model configuration (see Quick Start above)
4. Start using Mini-A via opack exec mini-a (or the mini-a alias if you added it)!

Testing MCP Servers

Mini-A includes an interactive MCP server testing tool that helps you test and debug MCP servers before integrating them into your workflows.

Using the MCP Tester

Launch the MCP tester console:

mini-a mcptest=true

Or connect to an MCP server directly:

mini-a mcptest=true mcp="(cmd: 'ojob mcps/mcp-time.yaml')"

For HTTP remote MCP servers:

mini-a mcptest=true mcp="(type: remote, url: 'http://localhost:9090/mcp')"

For SSE-based MCP servers:

mini-a mcptest=true mcp="(type: sse, url: 'http://localhost:9090/mcp')"

MCP Tester Features

The interactive tester provides:

• Connection Management - Connect to STDIO, HTTP Remote, HTTP SSE, oJob, dummy, or raw $mcp(...) configurations
• Tool Discovery - List all available tools from the connected MCP server
• Tool Inspection - View detailed information about tool parameters, types, and descriptions
• Interactive Tool Calling - Call any MCP tool with custom parameters through guided prompts
• Advanced Config Support - Merge extra $mcp options such as shared, clientInfo, auth, strict, blacklist, or future transport flags via JSSLON/JSON
• Configuration Options - Adjust settings like debug mode, tool selection display size, and result parsing
• Library Loading - Load additional OpenAF libraries for extended functionality using libs= parameter

Available Options

• mcp - MCP server configuration (SLON/JSON string or object)
• libs - Comma-separated list of libraries to load (e.g., libs="@mini-a/custom.js,helper.js")
• debug - Enable debug mode for detailed MCP connection logging (can be toggled in the interactive menu)

Example Session

# Launch the tester
mini-a mcptest=true
# 1. Choose "New connection"# 2. Select "HTTP SSE" or "Raw $mcp config" when you need newer transport/options support# 3. Enter the URL or the full JSSLON config# 4. Optionally merge extra $mcp options such as "(shared: true, clientInfo: (name: 'Mini-A MCP Tester'))"# 5. Choose "List tools" to see available tools# 6. Choose "Call a tool" to test a specific tool

The tester includes automatic cleanup with shutdown handlers to properly close MCP connections when exiting.

Features

• Multi-Model Support - Works with OpenAI, Google Gemini, GitHub Models, AWS Bedrock, Ollama, and more
• Dual-Model Cost Optimization - Use a low-cost model for routine steps with smart escalation (see USAGE.md)
• Advisor Strategy Mode - Optional modelstrategy=advisor keeps LC as executor while consulting the main model for difficult steps with centralized gating, strict advisor JSON validation, lightweight no-tool enforcement, and budget-aware consult limits (default mode remains unchanged)
• Built-in Performance Optimizations - Automatic context management, dynamic escalation, and parallel action support deliver 40-60% token reduction and 50-70% cost savings (see docs/OPTIMIZATIONS.md)
• Real-Time Streaming - Display LLM tokens as they arrive with markdown-aware buffering for smooth rendering (usestream=true)
• MCP Integration - Seamless integration with Model Context Protocol servers (STDIO & HTTP)
  • Dynamic Tool Selection - Intelligent filtering of MCP tools using stemming, synonyms, n-grams, and fuzzy matching (mcpdynamic=true)
  • Tool Caching - Smart caching for deterministic and read-only tools to avoid redundant operations
  • Circuit Breakers - Automatic connection health management with cooldown periods
  • Lazy Initialization - Deferred MCP connection establishment for faster startup (mcplazy=true)
  • Proxy Aggregation - Collapse all MCP connections (including Mini Utils Tool) into a single proxy-dispatch tool to minimize context usage (mcpproxy=true)
  • Programmatic Tool Calling - Optional per-session localhost HTTP bridge for calling MCP tools from scripts executed by the agent (mcpprogcall=true, requires useshell=true)
• Built-in MCP Servers - Database, file system, network, time/timezone, email, S3, RSS, Yahoo Finance, SSH, office documents, and more
• MCP Self-Hosting - Expose Mini-A itself as a templatable MCP server via mcps/mcp-mini-a.yaml; customize server name, title, tool description, and tool prefix at launch time (servername=, servertitle=, tooldesc=, toolprefix=) so a single YAML serves multiple personas without duplication
• A2A Agent Bridge - Consume any Google A2A-protocol agent (LangGraph, Vertex AI ADK, CrewAI, …) as MCP tools via mcps/mcp-a2a.yaml; discovers skills from /.well-known/agent.json Agent Cards and routes tasks via JSON-RPC 2.0
• Optional Shell Access - Execute shell commands with safety controls and sandboxing
• Web UI - Lightweight embedded chat interface for interactive use with clipboard controls for Markdown and static HTML exports
• Planning Mode - Generate and execute structured task plans for complex goals
  • Simple Plans by Default - Flat sequential planning is now the default (planstyle=simple) for better model compliance
  • Plan Validation - LLM-based critique validates plans before execution
  • Dynamic Replanning - Automatic plan adjustments when obstacles occur
  • Legacy Compatibility - Keep phase-based behavior when needed (planstyle=legacy)
  • Mode Presets - Quick configuration bundles (shell, chatbot, web, etc.) - see USAGE.md; set OAF_MINI_A_MODE to pick a default when mode= is omitted
• Sub-Goal Delegation - Hierarchical task decomposition with concurrent child agents
  • Local Delegation - Spawn child Mini-A agents in the same process for parallel subtask execution (usedelegation=true)
  • Remote Worker Routing - Route delegated subtasks by worker /info capabilities/limits plus A2A-compatible skills, with round-robin tie-breaks for equivalent workers (set workers=http://worker1:8080,http://worker2:8080)
  • Optional A2A Transport - Use A2A HTTP+JSON/REST worker endpoints instead of the legacy /task protocol (usea2a=true)
  • Dynamic Worker Registration - Workers can self-register/heartbeat/deregister through a dedicated parent registration server (workerreg, workerregurl, workerevictionttl)
  • Worker API - Headless HTTP API for distributed agent workloads across processes/containers/hosts (mini-a-worker.yaml)
  • Autonomous Delegation - LLM decides when to delegate via delegate-subtask tool
  • Manual Delegation - Console commands for interactive control (/delegate, /subtasks, /subtask)
  • Depth Tracking - Configurable nesting limits with automatic retry and deadline enforcement
• Conversation Persistence - Save and resume conversations across sessions (conversation=...; in mini-a-con, combine usehistory=true, historykeep=true, and resume=true to pick and continue prior console threads stored under ~/.openaf-mini-a/history/; use historykeepperiod= and/or historykeepcount= for retention)
• Rate Limiting - Built-in rate limiting for API usage control
• Metrics & Observability - Comprehensive runtime metrics for monitoring and cost tracking
• ASCII Sketch Guidance - Encourage text-based sketch outputs in responses (useascii=true)
• Interactive Maps - Ask the agent to return Leaflet map snippets for geographic prompts, rendered directly in the console transcript and web UI (usemaps=true)
• Math Formula Rendering - Encourage LaTeX formulas rendered with KaTeX in the web UI (usemath=true)
• Dreams (Sleep Pass) - Off-line consolidation with explicit modes: memory plan|apply, wiki plan|apply|reorg|repair|reindex|graph|indexes, proposal-first dry runs, and optional JSON reports — run via /dream or mini-a dream=true

Documentation

• Mini-A Website - Project home, guides, and announcements
• Mini-A Toolkit - Online toolkit and utilities
• What's New - Latest performance improvements and migration guide
• Quick Reference Cheatsheet - Fast lookup for all parameters and common patterns
• Performance Optimizations - Built-in optimizations for token reduction and cost savings
• Delegation Guide - Hierarchical task decomposition with local and remote delegation
• MCP Proxy Guide - How to consolidate multiple MCP connections behind one proxy-dispatch tool
• Usage Guide - Comprehensive guide covering all features
  • Getting Started
  • Model Configuration
  • Mode Presets
  • Advanced Features
  • Planning Workflow
  • MCP Integration Deep Dive
  • Security Considerations
  • Metrics and Observability
• MCP Documentation - Built-in MCP servers catalog
• Creating MCPs - Build custom MCP integrations
• External MCPs - Community MCP servers
• Contributing Guide - Join the project
• Code of Conduct - Community standards

Project Components

Mini-A ships with complementary components:

• mini-a.yaml - Core oJob definition that implements the agent workflow
• mini-a-con.js - Interactive console available through opack exec mini-a (or the mini-a alias)
• mini-a-mcptest.js - Interactive MCP server tester for testing and debugging MCP servers — launched via mini-a mcptest=true
• mini-a-memoryman.js - Interactive working-memory manager for inspecting and maintaining persisted global/session memories — launched via mini-a memoryman=true
• mini-a-modelman.js - Interactive model/config manager, also reachable from the console via /model — launched via mini-a modelman=true
• mini-a-dreams.js - Dream engine for memory/wiki consolidation with mode routing, reorg gates, and structured output/reporting — launched via mini-a dream=true or /dream
• mini-a.sh - Shell wrapper script for running directly from a cloned repository
• mini-a.js - Reusable library for embedding in other OpenAF jobs
• mini-a-progcall.js - Per-session localhost HTTP bridge used by programmatic MCP tool calling (mcpprogcall=true)
• mini-a-subtask.js - SubtaskManager for local child-agent delegation and remote worker delegation
• mini-a-web.sh / mini-a-web.yaml - Lightweight HTTP server for browser UI — launched via mini-a web=true or mini-a onport=<port> (or directly with ./mini-a-web.sh onport=<port>)
• mini-a-worker.yaml - Headless HTTP API server for programmatic agent delegation (launch with mini-a workermode=true)
• mini-a-modes.yaml - Built-in configuration presets for common use cases (can be extended with ~/.openaf-mini-a_modes.yaml or ~/.openaf-mini-a/modes.yaml)
• public/ - Browser interface assets

Common Configuration Options

Option	Description	Default
goal	Objective the agent should achieve	Required
youare	Override the opening persona sentence in the system prompt (inline text or @file path) to craft specialized agents	"You are a goal-oriented agent running in background." (Mini-A still appends the step-by-step directive, and adds the no-feedback remark for mini-a-con/mini-a-web)
chatyouare	Override the chatbot persona sentence when chatbotmode=true (inline text or @file path)	"You are a helpful conversational AI assistant."
useshell	Allow shell command execution	false
usesandbox	Apply built-in OS sandbox presets for shell commands (off,auto,linux,macos,windows); warns and may degrade when the backend is unavailable	off
sandboxprofile	Optional macOS profile path for sandbox-exec; when omitted, Mini-A generates a restrictive temporary .sb profile	-
sandboxnonetwork	Disable network inside the built-in sandbox when supported; Windows remains best-effort	false
readwrite	Allow file system modifications	false
mcp	MCP server configuration (single or array)	-
agent	Path (or inline markdown) containing YAML frontmatter metadata (model, capabilities, tools, constraints, knowledge, youare, mini-a). mini-a can set any Mini-A args from the file.	-
usetools	Register MCP tools with the model	false
usetoolslc	Register MCP tools only on the low-cost model	false
usejsontool	Enable an optional compatibility json tool when usetools=true (helps with models that occasionally emit json tool calls instead of plain JSON action output)	false
useutils	Auto-register Mini Utils Tool utilities as an MCP connection (init, filesystemQuery, filesystemModify, markdownFiles, plus console-only helpers like userInput when running mini-a-con)	false
usestdutils	When useutils=true, expose standard aliases (read, glob, grep, webfetch, question, skill, todowrite, and bash for shell) instead of legacy Mini Utils names	true
useskills	Expose the Mini Utils skills operation; when useutils=false, only the skills tool is registered	false
utilsroot	Root directory for Mini Utils Tool file operations (only when useutils=true)	.
utilsallow	Comma-separated allowlist of Mini Utils Tool names to expose (only when useutils=true)	unset
utilsdeny	Comma-separated denylist of Mini Utils Tool names to hide; applied after utilsallow (only when useutils=true)	unset
mini-a-docs	When true (and utilsroot is unset), sets utilsroot to getOPackPath("mini-a"); the markdownFiles tool description includes the resolved docs root so the LLM can navigate Mini-A documentation directly	false
mcpproxy	Aggregate all MCP connections (and Mini Utils Tool) under a single proxy-dispatch tool to save context; supports argumentsFile + resultToFile for large payload handoff	false
adaptiverouting	Enable adaptive rule-based route selection (direct/MCP/proxy/shell/utility/delegation) with fallback chains and trace output	false
routerorder	Comma-separated preferred route order (e.g. mcp_direct_call,mcp_proxy_path,shell_execution)	built-in default
routerallow	Comma-separated route allowlist applied by the adaptive router	unset
routerdeny	Comma-separated route denylist applied by the adaptive router	unset
routerproxythreshold	Payload-size threshold (bytes) where proxy routes are preferred for large requests	falls back to mcpproxythreshold
mcpproxytoon	When mcpproxythreshold>0, serialize proxy-spilled results as TOON text (af.toTOON) to improve search/read efficiency on large payloads	false
contextguard	Enable generic context/tool-output guardrails when maxcontext=0, including proactive compression and bounded readresult extraction	false
contextguardbudget	Assumed smallest context window used by contextguard when maxcontext=0	32000
toolresultmaxinline	Max inline bytes kept from large tool or readresult outputs before spill/truncation under contextguard	4096 when contextguard=true
readresultmaxmatches	Max matching regions returned by proxy-dispatchreadresultop='grep' under contextguard	20 when contextguard=true
mcpprogcall	Start a per-session localhost HTTP bridge so generated scripts can list/search/call MCP tools programmatically; requires useshell=true for script execution	false
mcpprogcallport	Port for the programmatic tool-calling bridge (0 = auto-assign free port)	0
mcpprogcallmaxbytes	Max inline JSON response size before storing oversized tool results under /result/{id}	4096
mcpprogcallresultttl	Time-to-live in seconds for oversized stored results returned by /result/{id}	600
mcpprogcalltools	Optional comma-separated allowlist of tool names exposed through the bridge	""
mcpprogcallbatchmax	Max calls accepted per /call-tools-batch request	10
chatbotmode	Conversational assistant mode	false
promptprofile	System prompt verbosity profile (minimal, balanced, verbose). balanced omits examples/step-by-step tool-call walkthroughs and trims tool-schema descriptions to their essential clause; verbose restores full examples and schema detail	minimal in chatbot mode; verbose with debug=true outside chatbot mode; otherwise balanced
systempromptbudget	Maximum estimated system-prompt token budget before low-priority sections are dropped	-
useplanning	Enable task planning workflow with validation and dynamic replanning	false
planstyle	Planning style (simple flat steps by default, or legacy phase-based)	simple

Outer Loop Autonomous Coding

Mini-A now supports an optional durable autonomous loop with outerloop=true. This keeps per-session state under ~/.openaf-mini-a/sessions/<session-id>/, reruns fresh agent cycles, persists plan/validation artifacts, and stops only when completion + validation succeed (or safety limits are reached).

Example with external instructions:

mini-a "Implement the feature described in ./TASKS.md" \
outerloop=true \
useplanning=true \
outerloopinstructions=./TASKS.md \
valgoal="All implementation tasks are complete and the configured validation checks pass" \
outerloopmaxcycles=8

Example without external instructions file:

mini-a "Refactor the parser and keep iterating until validation passes" \
outerloop=true \
valgoal="Parser tests pass and no regression is introduced" \
outerloopmaxcycles=6

To resume an interrupted session, pass the same outerloopsessionid used in the original run. Mini-A will reuse the existing session directory (under ~/.openaf-mini-a/sessions/) and continue from where it left off:

mini-a "Refactor the parser and keep iterating until validation passes" \
outerloop=true \
outerloopsessionid=session-20240601-120000-abc123 \
valgoal="Parser tests pass and no regression is introduced" \
outerloopmaxcycles=6

Option	Description	Default
usememory	Enable structured working memory (facts, evidence, openQuestions, hypotheses, decisions, artifacts, risks, summaries) maintained across the run	false
memoryscope	Memory scope selector: session, global, or both (session-first lookup when combined)	both
memorysessionid	Optional session id used to isolate ephemeral session memory (defaults to conversation or runtime id)	-
memorych	JSSLON definition for an OpenAF channel used to persist and reload global working memory across runs (e.g. {type:'file',options:{file:'/tmp/memory.json'}}). With memoryscope=both, default writes go to global when a channel is configured; use explicit session scope for ephemeral entries. This is the durable/semantic side of Mini-A memory, while memorysessionch carries session/episodic state.	-
memoryuser	Convenience shorthand: enables usememory and sets memorych/memorysessionch to file channels under ~/.openaf-mini-a/ (only channels not already defined; directory auto-created). Also defaults memorypromote=facts,decisions,summaries and memorystaledays=30.	false
memoryusersession	Convenience shorthand: enables usememory, defaults memoryscope=session, and sets memorysessionch to a file-backed store under ~/.openaf-mini-a/ (only when not already defined; directory auto-created).	false
metricsch	JSSLON definition for an OpenAF channel used to record periodic Mini-A metrics snapshots (for example {name:'mini-a-metrics',type:'mvs',options:{file:'/tmp/mini-a-metrics.db'}}). By default Mini-A stores only the mini-a metric; optional period, some, and noDate fields mirror ow.metrics.startCollecting.	-
memorymaxpersection	Per-section memory cap before compaction	80
memorymaxentries	Total memory-entry cap across all sections	500
memorycompactevery	Run compaction/summarization every N memory mutations	8
memorydedup	Deduplicate near-identical memory entries before append	true
memoryartifactttldays	TTL for normalized tool/network observations before expiry removal	7
memoryindexttldays	TTL for list/search/index observation snapshots	1
usewiki	Enable persistent Markdown wiki knowledge base (wiki action and /wiki console commands)	false
wikiaccess	Wiki access mode (ro or rw)	ro
wikibackend	Wiki backend: fs, s3, s3fs, es, or read-only http (https alias)	fs
wikiroot	Filesystem wiki directory or local .zip/.okt archive when wikibackend=fs; archives are always read-only	.
wikibucket	S3 bucket for s3/s3fs wiki backends	-
wikiprefix	S3 key prefix for s3/s3fs, or Elasticsearch index name for es	-
wikiurl	S3 endpoint, Elasticsearch/OpenSearch base URL, or static page-server base URL when wikibackend=http	-
wikiaccesskey	S3 access key, or Elasticsearch username when wikibackend=es	-
wikisecret	S3 secret key, or Elasticsearch password when wikibackend=es	-
wikiregion	S3 region for s3/s3fs wiki backends	-
wikiuseversion1	Use S3 signature v1/path-style compatibility for wiki access	false
wikiignorecertcheck	Disable TLS certificate checks for wiki S3 access	false
wikiindexdir	Override local index/cache root for non-filesystem wiki indexes	-
wikilexical	SLON/JSON lexical configuration for Lucene (language defaults to english; inline synonyms and optional synonymsFile rules supported; enhanced features are opt-in)	{ language: "english" }
wikis3artifactprefix	Optional S3 prefix containing a published .mini-a-wiki-lucene/ cache and, for mcp-wiki, .mini-a-wiki-graph/graph.json; downloaded into wikiindexdir on startup	-
s3artifactbundle	Use <wikis3artifactprefix>/mini-a-wiki-index.zip for S3 cache hydration	false
wikihttpindexurl	Optional HTTP artifact-bundle URL; defaults to <wikiurl>/mini-a-wiki-index.zip	-
wikihttptimeout	HTTP wiki request timeout in milliseconds	30000
wikiartifactrefreshsecs	Recheck HTTP or bundled-S3 artifact metadata between wiki requests; 0 disables periodic refresh	0

Static HTTP wikis are read-only: pages are fetched live from wikiurl, while list, search, and graph use a published mini-a-wiki-index.zip containing .mini-a-wiki-lucene/ and optionally .mini-a-wiki-graph/graph.json. Set wikiartifactrefreshsecs to refresh a long-running server after republishing; 0 retains startup-only checks. The Lucene-derived catalog excludes pages omitted from the search index.

See the complete wiki guide for backends, console/MCP operations, mounts, graphs, and publishing static bundles. | wikirestrictprofile | mcp-wiki-safe restricted retrieval defaults profile (tight, moderate, or relaxed); tight preserves legacy defaults and individual wikirestrict* settings override profile values | tight | | wikimetacache | Enable sharded wiki page metadata cache | true | | wikisearchscanbudget | Max pages the wiki search scan-fallback path reads (shared across mounts) | 1000 | | wikisearchscanmaxms | Wall-clock budget in milliseconds for the scan-fallback path (shared across mounts) | 15000 | | wikisearchcache | Cache backend.read() results used by wiki search's scan-fallback path | true for s3/http/es, false for fs/archive | | wikisearchcachettlms | TTL in milliseconds for the wiki search read cache | 15000 | | wikisearchcachemaxsize | Max entries retained in the wiki search read cache | 500 | | wikisearchparallel | Parallelize scan-fallback backend reads via pForEach (opt-in; see the wiki guide for the risk caveat) | false | | wikilintstaleddays | Stale-page age threshold used by wiki lint | 90 | | wikilintstreamthreshold | Page-count threshold that switches lint into streaming mode | 2000 | | wikilintmaxpairs | Max near-duplicate pairs checked during streaming lint | 250000 | | usewikigraph | Enable wiki knowledge-graph layer and graph action (auto-enabled when wikigraphfalkorhost is set) | false | | wikigraphsemantic | Enable semantic extraction during graph build | false | | wikigraphcommunity | Community algorithm for graph clustering | louvain | | wikigraphsearchhints | Add graph-related page hints to wiki search | true | | wikigraphmounts | Include attached wiki graph hints when mount graphs are available | true | | wikigraphhintcap | Max related graph hints per search | 5 | | wikimountgraphttlms | TTL for cached mount graph.json loads | 60000 | | wikigraphautosave | Graph autosave mode: always, debounced, or off | always | | wikigraphsavedebouncems | Debounce interval for graph autosave | 5000 | | wikigraphfalkorhost | FalkorDB host for graph-backed wiki state/query; uses FalkorDB instead of the local wiki graph cache | - | | wikigraphfalkorport | FalkorDB port | 6379 | | wikigraphfalkorgraph | FalkorDB graph name | mini_a_wiki | | wikigraphfalkoruser | FalkorDB user | - | | wikigraphfalkorpass | FalkorDB password | - |

Wiki folders become browsable sub-wikis when they contain index.md. Agents can use wiki ops tree, browse, and backlinks before selective read; read-write wikis also support move for link-repaired page relocation and init path=<folder/> for section indexes.

Option	Description	Default
useascii	Encourage ASCII sketch outputs in agent responses	false
usemaps	Encourage Leaflet-based interactive map outputs for geographic data	false
usemath	Encourage LaTeX-style math formulas ($...$, $$...$$) for KaTeX rendering in the web UI	false
usestream	Enable real-time token streaming as LLM generates responses	false
mode	Apply preset from mini-a-modes.yaml, ~/.openaf-mini-a_modes.yaml, or ~/.openaf-mini-a/modes.yaml (supports include inheritance)	-
modelman	Launch the interactive model definitions manager	false
memoryman	Launch the interactive working-memory manager (inspect/list/search/delete/prune global+session stores)	false
workermode	Launch the Worker API server (mini-a-worker.yaml) from the console entrypoint	false
workers	Comma-separated list of worker URLs for remote delegation (workers=http://host1:8080,http://host2:8080)	-
usea2a	Use A2A HTTP+JSON/REST binding (/message:send, /tasks, /tasks:cancel) for remote delegation	false
workerreg	Start dynamic worker registration server on the parent instance (port number)	-
workerregtoken	Bearer token for dynamic worker registration endpoints	-
workerevictionttl	Heartbeat TTL in milliseconds before dynamic worker eviction	60000
workerregurl	Parent registration endpoint(s) for worker self-registration (workermode=true)	-
delegationstalltimeout	Idle time before a delegated subtask is considered stalled; active subtasks keep running	300000
delegationhardtimeout	Optional absolute delegated subtask timeout regardless of activity	-
workerskills	JSON/SLON array of A2A-style worker skills exposed by workermode=true	-
workertags	Comma-separated tags appended to the default worker skill in workermode=true	-
workerreginterval	Worker registration heartbeat interval in milliseconds	30000
maxsteps	Maximum consecutive steps without a successful action before forcing a final answer (default is 15 via mini-a.sh/ojob, 50 when using the MiniA class programmatically)	15
maxtotalsteps	Hard ceiling on total steps regardless of progress; forces a final answer the same way maxsteps does. 0 disables it	0
rpm	Rate limit (requests per minute)	-
tpm	Rate limit (tokens per minute across prompt + completion)	-
maxcontext	Context budget in tokens before proactive summarization	0
contextguard	Enable a generic small-window safety budget and bounded tool-output handling when maxcontext=0	false
contextguardbudget	Assumed smallest context window used by contextguard when maxcontext=0	32000
toolresultmaxinline	Max inline bytes kept from large tool or readresult outputs before spill/truncation under contextguard	4096 when contextguard=true
readresultmaxmatches	Max matching regions returned by proxy-dispatchreadresultop='grep' under contextguard	20 when contextguard=true
compressgoal	Automatically compress oversized goal text before execution	false
compressgoaltokens	Estimated token threshold before goal compression is considered	250
compressgoalchars	Character threshold before goal compression is considered	1000
maxcontent	Alias for maxcontext	0
outfile	Path to save final answer output	-
outfileall	Deep-research-only path to save full cycle output (verdicts/learnings/history)	-
shellprefix	Override the prefix appended to each shell command in stored plans	-
shelltimeout	Maximum shell command runtime in milliseconds before timeout	-
shellmaxbytes	Maximum shell output size (chars) before truncating to a head/tail excerpt with guidance	-
toollog	JSSLON definition for a dedicated tool-log channel capturing MCP tool inputs/outputs	-
showthinking	Surface XML-tagged thinking blocks from model responses as thought logs	false
secpass	Password used to unlock OpenAF sBucket model secrets for stored model definitions	-
noagentsmd	Disable automatic discovery and injection of the nearest AGENTS.md file as a rule	false
verbose / debug	Enable detailed logging	false

For the complete list and detailed explanations, see the Usage Guide.

Setting the Model

Examples for different providers:

OpenAI:

export OAF_MODEL="(type: openai, model: gpt-5-mini, key: ..., timeout: 900000, temperature: 1)"

Google Gemini:

export OAF_MODEL="(type: gemini, model: gemini-2.5-flash-lite, key: ..., timeout: 900000, temperature: 0)"# Optional override: Mini-A auto-enables this behavior for Gemini main models when unset.export OAF_MINI_A_NOJSONPROMPT=true

GitHub Models:

export OAF_MODEL="(type: openai, url: 'https://models.github.ai/inference', model: openai/gpt-5-nano, key: $(gh auth token), timeout: 900000, temperature: 1, apiVersion: '')"

AWS Bedrock (requires OpenAF AWS oPack):

export OAF_MODEL="(type: bedrock, timeout: 900000, options: (model: 'amazon.nova-pro-v1:0', temperature: 0))"

Ollama (local):

export OAF_MODEL="(type: ollama, model: 'gemma3', url: 'http://ollama.local', timeout: 900000)"

Dual-model for cost optimization:

# High-capability model for complex reasoningexport OAF_MODEL="(type: openai, model: gpt-5, key: '...')"# Low-cost model for routine operationsexport OAF_LC_MODEL="(type: openai, model: gpt-5-mini, key: '...')"# Optional validation model for deep research scoringexport OAF_VAL_MODEL="(type: openai, model: gpt-4o-mini, key: '...')"

For more model configurations and recommendations, see USAGE.md.

Security

Mini-A includes built-in security features:

• Command Filtering - Dangerous commands blocked by default
• Interactive Confirmation - Optional approval for each command (checkall=true)
• Read-Only Mode - File system protection enabled by default
• Shell Isolation - Shell access disabled by default
• Sandboxing Support - Use usesandbox=... presets for built-in host restrictions, or shell=... for Docker/Podman/custom sandboxes with stronger isolation
• Hook-based Guardrails - Add before_shell/after_shell hooks to enforce organization-specific policy

Built-in sandbox presets now report their real protection level:

• linux: uses bwrap when available; otherwise Mini-A warns and runs unsandboxed.
• macos: uses sandbox-exec with either your sandboxprofile or a generated restrictive temporary profile.
• windows: applies best-effort PowerShell restrictions with isolated temp/home paths, but does not provide Linux-equivalent filesystem isolation.
• sandboxnonetwork=true: disables network access in the built-in Linux/macOS sandboxes and applies best-effort proxy/network clamps on Windows.
• readwrite=true: relaxes the built-in sandbox only for the current working directory and temp paths when the backend supports it.

Example with Docker sandbox:

docker run -d --rm --name mini-a-sandbox -v "$PWD":/work -w /work ubuntu:24.04 sleep infinity
mini-a goal="analyze files" useshell=true usesandbox=linux
# or keep custom wrappers
mini-a goal="analyze files" useshell=true shell="docker exec mini-a-sandbox"

See USAGE.md for detailed security information and sandboxing strategies.

Contributing

We welcome contributions! Please see our Contributing Guide for details on:

• Code contribution process
• Development setup
• Pull request guidelines
• Community standards

Running Tests

Run the test suite from the repository root:

ojob tests/autoTestAll.yaml

The run generates an autoTestAll.results.json file with detailed results—inspect it locally and delete it before your final commit.

Community

• Website: https://mini-a.ai
• Toolkit: https://tk.mini-a.ai
• Issues: GitHub Issues
• Discussions: GitHub Discussions
• Email: openaf@openaf.io

Please read our Code of Conduct before participating.

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.