Agent Harnesses

Agent-harness picks, decision guides, setup templates, and skills; live GitHub/HN discovery.

Connector by RyanAlberts · GitHub account verified by the MCP Registry

IndexedCC-BY-SA-4.0Local (stdio)★ 1,352

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/ryanalberts-agent-harnesses

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Agent-harness picks, decision guides, setup templates, and skills; live GitHub/HN discovery.

Use cases: agent-orchestration, deep-research

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools: 16 read · 2 write · 0 delete · 2 not yet classified
Secrets: None asked for
Install scripts: None found
Runs as: Python package

Tools by what they do 20

Read from the source code; the running server may list different tools.

Read 16 · Look things up without changing anything.

compare
compare_for
get_comparison
get_harness
get_playbook
get_skill
get_template
list_categories
list_comparisons
list_playbooks
list_skills
list_templates

Show 4 more tools

pick_harness
read_file
recommend
search_harnesses

Write 2 · Create, change, send or run things.

run
write_file

Not yet classified 2 · We could not tell from the name and description.

pick_infrastructure
whats_new

Files it touches

Any path the agent passes to its tools

Tools (20)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

compare
Side-by-side comparison of 2-4 harnesses by github_id — for "should I use X or Y?". Answers the head-to-head question with the list's curation intelligence instead of a raw spec dump: each project's record aligned on the list's axes, an edge summary naming which project leads on stars / adoption simplicity / autonomy / failure recovery, a warning when a requested id is in the graveyard (archived or integrity-flagged), and the decision guide covering this matchup when one exists. github_ids: 2-4 ids, e.g. ["openclaw/openclaw", "NousResearch/hermes-agent"] — use search_harnesses to find an id.…
compare_for
Pick the top harnesses for a use case or task and compare them side by side. One call for "compare the best options for X": candidates are ranked the same way pick_harness ranks them, the top 2-4 are compared head-to-head (per-axis edge lists incl. the researched deep-dive axes — sandboxing, context memory, lifecycle hooks, prompt optimization — plus each project's build-vs-buy tier), with each pick's ranking reason and the decision guide covering the matchup when one exists. use_case: the task, e.g. "sandboxed code execution for generated code". limit: how many top candidates to compare (2-…
get_comparison
Full markdown of one decision guide by slug (see list_comparisons). Guides cover architecture trade-offs, field reports, and the post-June-2026 billing reality — use them when a user is choosing between specific harnesses, not just browsing.
get_harness
Full record for one project by github_id (e.g. "anomalyco/opencode").
get_playbook
Full markdown of one playbook by slug (see list_playbooks).
get_skill
One skill by name (see list_skills): every file's content, each with the path to write it to. target picks the skills folder: "claude-code" writes to .claude/skills/<name>/, "agents" writes to .agents/skills/<name>/ (read by Codex, Gemini CLI, Cursor, and OpenCode). Write the files, then tell the user the skill is installed and how to ask for it.
get_template
One template by slug (see list_templates): its README plus the full content of every file, each with the path to write it to. Use this when a user asks you to set a harness up: write the files, then adapt them.
list_categories
The list's categories and curated use-case intents, with project counts.
list_comparisons
The list's head-to-head decision guides (e.g. "OpenClaw vs Hermes", "How to pick a harness") — slug, title, and summary for each. Fetch the full text of one with get_comparison(slug).
list_playbooks
Step-by-step guides for one setup task each (build your own harness, one AGENTS.md for every harness, ...): slug, title, and summary. Fetch the full text with get_playbook(slug).
list_skills
Agent skills that check a user's own harness setup (what the agent can reach, whether its 'tests pass' claims hold, where tokens go, which guardrails leak, ...): name, title, summary, description (when to use it), install command, and file list for each. Fetch one with get_skill(name).
list_templates
Copy-paste setup files for agent harnesses (an AGENTS.md that works in every harness, safe Claude Code settings, a minimal harness in Python, ...): slug, title, summary, and file list for each. Fetch the files of one with get_template(slug).
pick_harness
Recommend agent harnesses for a use case, ranked from a hand-curated list of 100+. use_case: what you want to do, e.g. "terminal coding agent", "drop-in memory layer", "evaluate agents on coding benchmarks". max_complexity: cap on adoption surface — one of "super simple", "mostly simple", "slightly complex", "complex" (default: no cap). min_autonomy: require at least this designed autonomy regime — one of "step-gated", "checkpoint-gated", "bounded", "headless" (e.g. "bounded" means "must be able to run a whole task unattended"; excludes n/a entries). min_recovery: require at least this failur…
pick_infrastructure
Pick agent infrastructure at any level of the stack: curated list first, live web discovery second, so the answer is never limited to the list. Where pick_harness ranks only the curated list, this tool adds a live discovery pass for capabilities newer than the list: a GitHub repository search (recently pushed, star-ranked, already-listed and graveyard repos removed) and a Hacker News search (recent stories, 20+ points). Live results are labeled "unvetted": they have NOT passed the list's curation bar, so treat them as leads to evaluate, not recommendations. need: plain language, e.g. "somewh…
read_file
Read a UTF-8 text file.

Show 5 more tools

recommend
Opinionated single recommendation for a need — a decision, not a list. Where pick_harness returns a ranked shortlist, recommend commits: one top pick with the reason, up to two alternatives, any listed harnesses to AVOID for this need (archived, or flagged for star manipulation — with why), and the most relevant decision guide to read next. Use this when an agent or user asks "what should I actually use for X?". need: plain-language description of what you're building, e.g. "an always-on personal assistant in my chat apps" or "evaluate a coding agent on benchmarks". language: optional — rest…
run
Run a shell command in the current directory and return its output.
search_harnesses
Keyword search across all 100+ projects (name, description, tags, category). Returns JSON: matching projects sorted by relevance then stars.
whats_new
What changed in the list, week by week: harnesses added or removed, the biggest star gains, the fastest growers, projects archived upstream, and new guides, skills, and templates. Pass since=YYYY-MM-DD for every week after that date, or omit it for the latest `limit` weeks. Use it to answer "what's new in agent harnesses" or to check whether an earlier recommendation is out of date.
write_file
Create or overwrite a text file with the full new content.

Signals

Stars: 1,352
Forks: 90
Open issues: 0
Contributors: 6
Weekly downloads: 234
Last commit: Oct 23, 2026 (5 days ago)
Last release: Oct 23, 2026 (5 days ago)
Last package publish: Oct 23, 2026 (5 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Registry name: io.github.RyanAlberts/agent-harnesses
Version: 0.8.0
Auth: No auth
Packages: pypi agent-harnesses-mcp
License: CC-BY-SA-4.0
Repository: github.com/RyanAlberts/best-of-Agent-Harnesses
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Official MCP Registry github-graphql