{ "data": { "a": { "slug": "emdash", "name": "Emdash", "vendor": "General Action, Inc.", "vendorUrl": "https://emdash.sh", "kind": "harness", "category": "agent-harnesses", "summary": "Emdash is an open-source desktop app that runs coding agents such as Claude Code, Codex, OpenCode and Amp in parallel, each in its own Git worktree, locally or on remote machines over SSH, with issue intake and pull requests.", "url": "https://www.anchorterminal.com/tools/emdash", "markdownUrl": "https://www.anchorterminal.com/tools/emdash.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/emdash.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/emdash.json", "dns": "emdash.grade.anchorterminal.com", "repo": "https://github.com/generalaction/emdash", "license": "Apache-2.0", "transports": [], "packages": [], "auth": "none", "pricing": "free", "pricingNotes": "Free and open source. You pay for the coding agents it runs, through your own subscriptions or API keys (checked 2026-11-07).", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No payment protocol in the repository or README (checked 2026-11-07).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-07" }, "docsUrl": "https://emdash.sh/docs", "capabilities": [ "agent.harness", "agent.multi-agent" ], "tags": [ "open-source", "apache-2.0", "desktop-app", "telemetry", "new" ], "lastRelease": "2026-11-06", "graded": true, "anchor": { "graded": true, "score": 53.9, "grade": "D", "agentReady": false, "rank": 927, "ranked": true, "rankOf": 1486, "categoryRank": 35, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 55, "maintenance": 70, "payments": 60, "reliability": 55, "schema": 55, "security": 38, "transparency": 54 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-11-07" }, "negative": 0, "verdict": "A mature open-source app for parallel coding agents in Git worktrees, with issue intake from a dozen trackers and remote machines over SSH. Telemetry is on unless you turn it off, and no test workflow was found in the repository.", "bestFor": "Developers who want parallel agents in worktrees, fed from their issue tracker, locally or over SSH.", "strengths": [ "Each task in its own Git worktree and branch", "Issues from Linear, GitHub, Jira, GitLab, Asana and more go straight to an agent", "Works on remote machines over SSH", "Apache 2.0, version 1.2, with macOS, Windows and Linux builds" ], "weaknesses": [ "Telemetry on unless turned off in Settings or with TELEMETRY_ENABLED=false", "No test workflow found, only consistency and release workflows", "No security policy file" ], "agentNotes": [ "Launch with TELEMETRY_ENABLED=false if you don't want telemetry", "Use the SSH mode to keep agents on a remote machine" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "D", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 53.9 } ], "editorialScores": { "ergonomics": 55, "maintenance": 70, "payments": 60, "reliability": 55, "schema": 55, "security": 38, "transparency": 68 }, "provenanceScore": 40, "checked": { "categories": { "ergonomics": "2026-11-07", "maintenance": "2026-11-07", "payments": "2026-11-07", "reliability": "2026-11-07", "schema": "2026-11-07", "security": "2026-11-07", "transparency": "2026-11-07" }, "last": "2026-11-07", "oldest": "2026-11-07", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "brew install --cask emdash" }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/emdash" }, "area": "frameworks", "provenance": { "legalEntity": "General Action, Inc.", "domain": "emdash.sh", "domainRegistered": "", "domainNote": "Not looked up: RDAP isn't requested under the 1 November 2026 rules.", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-11-07", "notes": [ "The licence names General Action, Inc.. The repository is github.com/generalaction/emdash." ], "score": 40 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/emdash.json", "live": { "slug": "emdash", "securityTxt": { "url": "https://emdash.sh/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:15.230445185Z" }, "updatedAt": "2026-11-07T16:01:15.230445185Z" } }, "answer": "Muse Code scores 56.2 (C) on agent readiness against Emdash's 53.9 (D), and leads in 5 of 7 scored categories. Emdash leads on reliability and payments \u0026 pricing.", "b": { "slug": "muse-code", "name": "Muse Code", "vendor": "Meta", "vendorUrl": "https://dev.meta.ai/products/muse-code", "kind": "harness", "category": "agent-harnesses", "summary": "Muse Code is Meta's coding agent for the terminal and CI, built for its Muse models. It plans, edits files and runs commands under approvals and an OS sandbox, interactively, headless through `muse exec` or from an SDK.", "url": "https://www.anchorterminal.com/tools/muse-code", "markdownUrl": "https://www.anchorterminal.com/tools/muse-code.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/muse-code.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/muse-code.json", "dns": "muse-code.grade.anchorterminal.com", "repo": "https://github.com/meta-models/muse-code-sdk", "license": "Proprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT.", "transports": [], "packages": [ { "registry": "npm", "name": "@muse-code/sdk" }, { "registry": "pypi", "name": "muse-code-sdk" } ], "auth": "mixed", "authNotes": "A browser sign-in to a Meta Model API account on first run, or a Meta Model API key in `META_API_KEY` or stored with `muse auth set`. A key takes priority over a browser session. CI runs and Meta Managed Accounts must use a key.", "pricing": "paid", "pricingNotes": "Pay-as-you-go at Meta Model API token prices, or a monthly plan at $5 (Everyday Usage), $15 (High Usage), $50 (Power Usage) or $200 (Maximum Usage), checked 2026-10-12. Muse Wonder Full needs Power Usage or Maximum Usage. No free plan or trial was found.", "priceSummary": "$5 / mo", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the Muse Code docs, the subscription pages or dev.meta.ai/llms.txt, checked 12 October 2026. Plans are paid through Meta Accounts Centre and pay-as-you-go through Model API billing.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 63119, "pypiWeekly": null, "asOf": "2026-10-12" }, "docsUrl": "https://dev.meta.ai/docs/muse-code", "llmsTxt": "https://dev.meta.ai/llms.txt", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "official", "harness", "coding-agent", "cli", "closed-source", "mcp", "llms-txt", "sandbox", "approvals", "card-required" ], "lastRelease": "2026-10-24", "graded": true, "anchor": { "graded": true, "score": 56.2, "grade": "C", "agentReady": false, "rank": 833, "ranked": true, "rankOf": 1486, "categoryRank": 31, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 79, "maintenance": 75, "payments": 20, "reliability": 45, "schema": 84, "security": 67, "transparency": 56 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-02" }, "negative": -5, "negativeNotes": [ "2026-10-24. Security fixes released without an advisory, -3. Muse Code's release notes describe flaws in its own code fixed in released versions, among them sandboxed commands able to read or change sign-in details and approval rules in ~/.config/muse (1.4.10, 16 October 2026), Sapling commands running outside the sandbox (1.4.12, 22 October) and untrusted workspaces receiving project rules from a trusted session (1.4.13, 24 October), with 1.4.6's `find -exec rm` approval gap (11 October). OSV holds no advisory for either SDK, and repeats fold into one term. Source https://dev.meta.ai/docs/muse-code/changelog.md", "2026-11-02. Telemetry on by default without disclosure, -2. The settings page lists only \"telemetry options\", and the release notes speak of a saved opt-out for feedback and diagnostic upload and for the remote settings check, but no page says what is sent or that it's on by default. Source https://dev.meta.ai/docs/muse-code/configuration.md" ], "verdict": "Muse Code runs with approvals and an OS sandbox on by default, per-host network approval, an append-only event log and a headless mode with documented exit codes. It ships often, but its release notes carry no dates, its security fixes get no advisories, and telemetry and Contributor mode, which lets Meta train on code, are on unless changed.", "bestFor": "Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run.", "strengths": [ "Sandbox on by default (Seatbelt on macOS, bubblewrap on Linux), with `.git`, `.muse` and `.agents` read-only and shell commands refused if containment can't be confirmed", "Network access is proxy-only by default, and the first connection to each new host, port or protocol stops for review", "`muse exec --json` streams JSONL events, with exit codes 0, 1, 2, 130 and 143 documented and `--max-model-steps` to cap a run", "A versioned session protocol (`muse serve`, `muse schema`) with MIT-licensed TypeScript and Python SDKs released in step with the CLI", "MCP over stdio and streamable HTTP with OAuth 2.1 sign-in, and named toolsets that select MCP tools by name or prefix" ], "weaknesses": [ "Closed source, with no public CI or issue tracker for the CLI found and release notes that carry no dates", "Subscriptions default to Contributor mode, which lets Meta train on prompts, code and responses until it's turned off", "No free route. Plans run from $5 to $200 a month, and pay-as-you-go billing needs a card", "Sandbox and trust flaws fixed in 1.4.10 to 1.4.13 were described only in release notes, with no advisory", "MCP tools run outside the sandbox, and telemetry is on with no page saying what it sends" ], "agentNotes": [ "Set `META_API_KEY` for headless runs. Browser sign-in isn't available in CI or for Meta Managed Accounts", "Gate on your own test command, not the exit code. `muse exec` returns 0 when the turn completes even if tests still fail", "Pass `--max-model-steps` on unattended runs so a stuck task can't loop", "Prefer `--disable-approval` to `--yolo` in CI so the sandbox stays on. On Linux the runner needs a working bubblewrap and a non-musl build", "Turn Contributor mode off in `/settings` before a subscription session touches private code" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 4, "avgRating": 3.3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 56.2 } ], "editorialScores": { "ergonomics": 79, "maintenance": 75, "payments": 20, "reliability": 45, "schema": 84, "security": 67, "transparency": 46 }, "provenanceScore": 65, "checked": { "categories": { "ergonomics": "2026-11-02", "maintenance": "2026-11-02", "payments": "2026-11-02", "reliability": "2026-11-02", "schema": "2026-11-02", "security": "2026-11-02", "transparency": "2026-11-02" }, "last": "2026-11-02", "lastMoved": "2026-11-02", "oldest": "2026-11-02", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "curl -fsSL https://dev.meta.ai/install.sh | sh # Windows: irm https://dev.meta.ai/install.ps1 | iex", "headless": { "env": { "META_API_KEY": "\u003cyour-key\u003e" }, "run": "muse exec --json \"Refactor the auth module and run the tests.\"" } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/muse-code" }, "sameCompany": [ "meta-model-api", "muse-spark-open", "muse-glimmer-30b" ], "area": "frameworks", "unitPrices": [ { "item": "Everyday Usage plan", "unit": "month", "usd": 5, "note": "10 to 50 prompts every 5 hours." }, { "item": "High Usage plan", "unit": "month", "usd": 15, "note": "5x the Everyday Usage plan." }, { "item": "Power Usage plan", "unit": "month", "usd": 50, "note": "20x the Everyday Usage plan, with Muse Wonder Full." }, { "item": "Maximum Usage plan", "unit": "month", "usd": 200, "note": "80x the Everyday Usage plan, with Muse Wonder Full." } ], "provenance": { "legalEntity": "Meta Platforms, Inc.", "domain": "meta.ai", "domainRegistered": "2017-12-16", "endpointOnVendorDomain": null, "terms": "https://dev.meta.ai/legal/terms-of-service", "privacy": "https://www.facebook.com/privacy/policy/", "statusPage": "", "changelog": "https://dev.meta.ai/docs/muse-code/changelog", "securityTxt": "none", "checked": "2026-11-02", "notes": [ "The Meta Model API Terms of Service (last updated 9 October 2026) cover an artificial intelligence coding harness and name Meta Platforms, Inc., or Meta Platforms Ireland Limited in the European Region. The subscription page adds the Meta Subscription Terms of Service.", "The privacy field is the Meta Privacy Policy, which the terms link. www.facebook.com's robots.txt asks readers like ours not to fetch it, as the 8 October policy reading records, so it wasn't read.", "RDAP for meta.ai gives a registration date of 16 December 2017. The model calls go to api.meta.ai, and the binaries download from lookaside.facebook.com.", "No status page for Meta Model API was found. dev.meta.ai/status redirects to the home page.", "dev.meta.ai/code and developer.meta.com/ai/products/muse-code redirect to dev.meta.ai/products/muse-code.", "dev.meta.ai/.well-known/security.txt returns 404 on 2 November 2026. The SDK repository's SECURITY.md sends vulnerability reports to bugbounty.meta.com, whose robots.txt disallows our reader.", "api.meta.ai, which serves the release channel and the launcher, disallows every path in robots.txt, so the 12 October manifest reading is struck." ], "score": 65 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/muse-code.json", "live": { "slug": "muse-code", "versions": [ { "registry": "npm", "name": "@muse-code/sdk", "version": "1.4.14", "seenAt": "2026-11-06T23:47:52.9194391Z" }, { "registry": "pypi", "name": "muse-code-sdk", "version": "1.4.14", "released": "2026-10-27", "seenAt": "2026-11-06T23:47:53.753879721Z" } ], "githubStars": 85, "npmWeekly": 460027, "pypiWeekly": 158, "securityTxt": { "url": "https://meta.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:02:03.890144289Z" }, "llmsTxt": { "url": "https://dev.meta.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:33:15.319287368Z" }, "domain": { "domain": "meta.ai", "registered": "2017-12-16", "source": "https://rdap.identitydigital.services/rdap/domain/meta.ai", "checkedAt": "2026-11-01T14:15:25.518716318Z" }, "pages": [ { "url": "https://dev.meta.ai/docs/muse-code/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-11-07T14:02:42.372587233Z", "changedAt": "2026-11-07T14:02:42.372587233Z", "fingerprint": "8dde1d70b75c" } ], "github": { "repo": "meta-models/muse-code-sdk", "checkedAt": "2026-11-02T09:05:21.144468378Z", "stars": 81, "archived": false, "issuesEnabled": true, "pushedAt": "2026-11-02T06:26:54Z", "openIssues": 78, "openPRs": 5, "issuesOpened90d": 99, "issuesClosed90d": 21, "prsMerged90d": 17, "replies": { "sampled": 25, "unanswered": 22, "medianDays": 1 } }, "updatedAt": "2026-11-07T16:02:03.890144289Z" } }, "edges": [ { "by": 40, "category": "payments", "leads": "emdash", "name": "Payments \u0026 pricing", "reasons": { "a": "Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60.", "b": "Harness reading of the published rubric. No payment protocol (0). Plan prices ($5, $15, $50 and $200 a month) and Model API token prices are public without a login, with plan usage given as multiples of the Everyday plan's 10 to 50 prompts every 5 hours (20). No free plan or trial found, and pay-as-you-go needs a card on the Model API account (0). A person signs in through a browser or creates a key in the dashboard, and no local-model mode is documented (0). 0 + 20 + 0 + 0 = 20." }, "scores": { "a": 60, "b": 20 } }, { "by": 29, "category": "schema", "leads": "muse-code", "name": "Schema \u0026 documentation", "reasons": { "a": "Harness reading. Docs site and a workspace server package (55).", "b": "Framework reading. `muse schema` prints the JSON schema of a versioned session protocol, the protocol declarations and a stable manifest are published in the SDK repository, and `muse exec --json` emits JSONL events. No JSON Schema for `settings.json` was found (22 of 25). llms.txt at dev.meta.ai/llms.txt with a Markdown copy of each page (10). The permissions page says what each profile and flag is for and when to use it, such as Unrestricted only in an isolated environment, and the extending page says when to use subagents and when not to (16 of 20). Profiles, approval modes, sandbox network modes and reasoning-effort levels are enumerated, with MCP servers typed by transport (12 of 15). Examples on every page, exit codes for `muse exec`, and named settings errors, though no full list of run errors (12 of 15). A changelog for every version to 1.4.13, with no dates (12 of 15). 22 + 10 + 16 + 12 + 12 + 12 = 84." }, "scores": { "a": 55, "b": 84 } }, { "by": 29, "category": "security", "leads": "muse-code", "name": "Security \u0026 auth", "reasons": { "a": "Harness reading. Telemetry is described as optional and disabled in Settings or with TELEMETRY_ENABLED=false, which reads as on by default (15 of 30). Worktree per task and remote machines over SSH (10 of 20). No prompt-injection guidance (5). No audit log (5). No security policy file found (3). 15 + 10 + 5 + 5 + 3 = 38.", "b": "Framework reading (telemetry defaults, approvals, guardrails, sandboxing), five lines. A browser session or a Model API key, cleared by `muse logout`. Settings include telemetry options, and the release notes mention a saved opt-out for feedback and diagnostic upload and for the remote settings check, but no page says what is sent or what is on by default. Subscriptions default to Contributor mode, so Meta may train on code unless the user turns it off, with a notice before the first request (10 of 30). Ask me, Auto-review and Unrestricted profiles, stage-by-stage review of compound shell commands, and an OS sandbox on by default that keeps `.git`, `.muse` and `.agents` read-only and refuses to run when it can't confirm containment. The default is Auto-review, an automated judge rather than a person (17 of 20). Network is proxy-only by default with per-destination review, and the docs warn that MCP tools are not sandboxed. The 1.4.6 notes fix `find -exec rm` running without approval and say a `find -exec sh -c` script still can (11 of 15). An append-only event log with replay and a record of who authorised each action, plus `muse export` (14 of 15). Meta's bug bounty, named in the SDK's SECURITY.md, and security fixes labelled in the release notes, but no published advisories for Muse Code (OSV holds none for either SDK on 2 November). The 12 October reading of www.facebook.com's security.txt is struck (that host's robots.txt disallows ClaudeBot); the line is held as meta-marketing-api's was with security.txt unread (15 of 20). 10 + 17 + 11 + 14 + 15 = 67. Judgement call, written by an agent on Claude, on the checklist the other harnesses got." }, "scores": { "a": 38, "b": 67 } }, { "by": 24, "category": "ergonomics", "leads": "muse-code", "name": "Agent ergonomics", "reasons": { "a": "Harness reading. Issue intake from Linear, GitHub, Jira and others, diff review, pull requests and CI checks in one place, local or over SSH (55).", "b": "Framework reading, adapted to a harness driven by a pipeline. `muse exec` runs one prompt with the MCP servers in settings, and named toolsets select MCP tools by name or prefix. We found no deferred tool loading in Muse Code's own docs (18 of 25). `--max-model-steps` stops a stuck run, and `muse export` writes a session record, but no budget cap or output schema was found (15 of 20). Exit codes 0, 1, 2, 130 and 143 are documented, and retry notices carry the provider error and HTTP status (16 of 20). `--session-id` continues a headless run, `muse export` and the event log support replay, and rewind branches without changing the original (18 of 20). TypeScript and Python SDKs. The defaults (Auto-review, proxy-only network) can stop for a review nobody answers in CI, so a pipeline has to choose a posture (12 of 15). 18 + 15 + 16 + 18 + 12 = 79." }, "scores": { "a": 55, "b": 79 } }, { "by": 10, "category": "reliability", "leads": "emdash", "name": "Reliability", "reasons": { "a": "Local software. Homebrew cask and installers for macOS, Windows and Linux (20). A code-consistency check and release workflows; no test workflow found (10). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Stable tags to v1.2.11, release notes on GitHub (10). Version 1.2.11 (15). 20 + 10 + 0 + 10 + 15 = 55.", "b": "Local-package reading. Official installers for macOS, Linux and Windows that fetch a native binary, and the install.sh script checks the launcher's SHA-256 against the advertised sum (20). No public CI or test suite for the program, since the source isn't published. The SDK repository's workflows only publish to npm, PyPI and crates.io, by hand (0). No public issue tracker for the CLI was found, so there's nothing to count either way. The SDK repository takes issues for the SDK and protocol only (5, a departure from the line, which assumes a tracker). Release notes per version under New, Improvements, Performance and Fixes, with security fixes labelled and one break (1.4.8's profile refusal) announced in the 1.4.6 notes, but no dates and no breaking-change heading (5). 1.4.13 (15). Same reading as Claude Code, which is also closed source. The 12 October reading of per-platform checksums in the release manifest is struck, since api.meta.ai's robots.txt now disallows every path. 20 + 0 + 5 + 5 + 15 = 45." }, "scores": { "a": 55, "b": 45 } }, { "by": 5, "category": "maintenance", "leads": "muse-code", "name": "Maintenance \u0026 community", "reasons": { "a": "v1.2.11 on 6 November 2026 (30). v1.2.9, v1.2.10 and v1.2.11 within two weeks (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Current installers and Homebrew cask (15). Release workflows, no test CI (5). 30 + 20 + 0 + 15 + 5 = 70.", "b": "1.4.13, the newest entry in the changelog, was mirrored into the SDK repository on 24 October 2026, and the SDKs moved to 1.4.14 there on 27 October (30). The SDK repository's dated release mirrors since 4 August are 1.3.0 (16 and 17 September), 1.3.1 (21 September), 1.4.2 (30 September), 1.4.4 (8 October), 1.4.6 (11 October), 1.4.7 (13 October), 1.4.8 (14 October), 1.4.9 (15 October), 1.4.10 (16 October), 1.4.11 (19 October), 1.4.12 (22 October), 1.4.13 (24 October) and 1.4.14 (27 October) (20). No public tracker for the CLI. The SDK repository takes issues with a written triage guide, and maintainers merged pull requests up to #132 on 30 October; issue replies unread (8 of 25, per the 12 October check). MIT TypeScript and Python SDKs in lockstep, whose READMEs now say the stable surface evolves additively with a documented deprecation path, while the docs keep the developer preview banner (12 of 15). A checksummed launcher, but no public CI for the program (5 of 10). 30 + 20 + 8 + 12 + 5 = 75." }, "scores": { "a": 70, "b": 75 } } ], "facts": [ { "a": "Agent harness", "b": "Agent harness", "name": "Kind" }, { "a": "General Action, Inc.", "b": "Meta", "name": "Vendor" }, { "a": "no (local only)", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "", "b": "", "name": "Transports" }, { "a": "None", "b": "OAuth or key", "name": "Auth" }, { "a": "Free", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0", "b": "Proprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT.", "name": "Licence" }, { "a": "no", "b": "yes", "name": "Read-only variant documented" }, { "a": "no", "b": "yes", "name": "llms.txt" }, { "a": "2026-11-06", "b": "2026-10-24", "name": "Last release" }, { "a": "no document linked", "b": "2026-10-02", "name": "Terms last updated" }, { "a": "no document linked", "b": "couldn't be read", "name": "Privacy policy last updated" }, { "a": "not read yet", "b": "yes", "name": "Customer content may train models" }, { "a": "not read yet", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "not read yet", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not read yet", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "not read yet", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "63k npm/wk", "name": "Popularity" }, { "a": "none", "b": "3.3/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "Muse Code scores 56.2 (C) on agent readiness against Emdash's 53.9 (D), and leads in 5 of 7 scored categories. Emdash leads on reliability and payments \u0026 pricing.", "question": "Which is better for AI agents, Emdash or Muse Code?" }, { "answer": "Emdash is open source (Apache-2.0). No open-source release is listed for Muse Code.", "question": "Are Emdash and Muse Code open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 55 against 45", "Payments \u0026 pricing, 60 against 20" ], "also": [ "No key needed to call it", "Open source", "No incidents deducted, where Muse Code loses 5 points for them" ], "goodFor": "Developers who want parallel agents in worktrees, fed from their issue tracker, locally or over SSH.", "slug": "emdash", "watchFor": "Telemetry on unless turned off in Settings or with TELEMETRY_ENABLED=false" }, { "aheadOn": [ "Schema \u0026 documentation, 84 against 55", "Agent ergonomics, 79 against 55", "Security \u0026 auth, 67 against 38", "Maintenance \u0026 community, 75 against 70" ], "also": null, "goodFor": "Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run.", "slug": "muse-code", "watchFor": "Closed source, with no public CI or issue tracker for the CLI found and release notes that carry no dates" } ], "history": { "emdash": null, "muse-code": [ { "causes": [ "correction" ], "date": "2026-11-02", "delta": -5, "from": 61.2, "fromGrade": "C", "to": 56.2, "toGrade": "C" }, { "causes": [ "method" ], "date": "2026-10-30", "delta": -0.2, "from": 61.4, "fromGrade": "C", "to": 61.2, "toGrade": "C" }, { "causes": [ "method" ], "date": "2026-10-27", "delta": 0.1, "from": 61.3, "fromGrade": "C", "to": 61.4, "toGrade": "C" } ] }, "job": { "capability": "agent.harness", "name": "Agent harnesses" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-emdash.json", "title": "Agent Zero vs Emdash", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-muse-code.json", "title": "Agent Zero vs Muse Code", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-emdash.json", "title": "Aider vs Emdash", "url": "https://www.anchorterminal.com/compare/aider-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-muse-code.json", "title": "Aider vs Muse Code", "url": "https://www.anchorterminal.com/compare/aider-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-emdash.json", "title": "Amp vs Emdash", "url": "https://www.anchorterminal.com/compare/amp-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-muse-code.json", "title": "Amp vs Muse Code", "url": "https://www.anchorterminal.com/compare/amp-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-emdash.json", "title": "Antigravity CLI vs Emdash", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code.json", "title": "Antigravity CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/auggie-vs-emdash.json", "title": "Auggie CLI vs Emdash", "url": "https://www.anchorterminal.com/compare/auggie-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/auggie-vs-muse-code.json", "title": "Auggie CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/auggie-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/axlr-vs-emdash.json", "title": "AXLR vs Emdash", "url": "https://www.anchorterminal.com/compare/axlr-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/axlr-vs-muse-code.json", "title": "AXLR vs Muse Code", "url": "https://www.anchorterminal.com/compare/axlr-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-emdash.json", "title": "Claude Code vs Emdash", "url": "https://www.anchorterminal.com/compare/claude-code-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-muse-code.json", "title": "Claude Code vs Muse Code", "url": "https://www.anchorterminal.com/compare/claude-code-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/cline-vs-emdash.json", "title": "Cline vs Emdash", "url": "https://www.anchorterminal.com/compare/cline-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/cline-vs-muse-code.json", "title": "Cline vs Muse Code", "url": "https://www.anchorterminal.com/compare/cline-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/conductor-vs-emdash.json", "title": "Conductor vs Emdash", "url": "https://www.anchorterminal.com/compare/conductor-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/conductor-vs-muse-code.json", "title": "Conductor vs Muse Code", "url": "https://www.anchorterminal.com/compare/conductor-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/crush-vs-emdash.json", "title": "Crush vs Emdash", "url": "https://www.anchorterminal.com/compare/crush-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/crush-vs-muse-code.json", "title": "Crush vs Muse Code", "url": "https://www.anchorterminal.com/compare/crush-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-emdash.json", "title": "Cursor CLI vs Emdash", "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-muse-code.json", "title": "Cursor CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-emdash.json", "title": "DeepSeek Harness (dsh) vs Emdash", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-muse-code.json", "title": "DeepSeek Harness (dsh) vs Muse Code", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/deepseek-superagent-vs-emdash.json", "title": "dsh-superagent (DeepSeek) vs Emdash", "url": "https://www.anchorterminal.com/compare/deepseek-superagent-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/deepseek-superagent-vs-muse-code.json", "title": "dsh-superagent (DeepSeek) vs Muse Code", "url": "https://www.anchorterminal.com/compare/deepseek-superagent-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-emdash.json", "title": "Devin vs Emdash", "url": "https://www.anchorterminal.com/compare/devin-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-muse-code.json", "title": "Devin vs Muse Code", "url": "https://www.anchorterminal.com/compare/devin-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/droid-cli-vs-emdash.json", "title": "Droid CLI vs Emdash", "url": "https://www.anchorterminal.com/compare/droid-cli-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/droid-cli-vs-muse-code.json", "title": "Droid CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/droid-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-emdash.json", "title": "Pi vs Emdash", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-muse-code.json", "title": "Pi vs Muse Code", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-gemini-cli.json", "title": "Emdash vs Gemini CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-gemini-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-github-copilot-cli.json", "title": "Emdash vs GitHub Copilot CLI", "url": 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"title": "Emdash vs MiniMax Code", "url": "https://www.anchorterminal.com/compare/emdash-vs-minimax-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-mistral-vibe-cli.json", "title": "Emdash vs Mistral Vibe CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-mistral-vibe-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-openai-agents-api.json", "title": "Emdash vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/emdash-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-openai-codex.json", "title": "Emdash vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/emdash-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-opencode.json", "title": "Emdash vs OpenCode", "url": "https://www.anchorterminal.com/compare/emdash-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-openhands.json", "title": "Emdash vs OpenHands", "url": "https://www.anchorterminal.com/compare/emdash-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-openmausbot.json", "title": "Emdash vs OpenMausBot", "url": "https://www.anchorterminal.com/compare/emdash-vs-openmausbot" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-orca.json", "title": "Emdash vs Orca", "url": "https://www.anchorterminal.com/compare/emdash-vs-orca" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-paseo.json", "title": "Emdash vs Paseo", "url": "https://www.anchorterminal.com/compare/emdash-vs-paseo" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-prime-agent.json", "title": "Emdash vs Prime Agent", "url": "https://www.anchorterminal.com/compare/emdash-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-qoder-cli.json", "title": "Emdash vs Qoder CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-qoder-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-qwen-code.json", "title": "Emdash vs Qwen Code", "url": "https://www.anchorterminal.com/compare/emdash-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-reflection-mirror.json", "title": "Emdash vs Mirror CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-reflection-mirror" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-rovo-dev-cli.json", "title": "Emdash vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/emdash-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-sculptor.json", "title": "Emdash vs Sculptor", "url": "https://www.anchorterminal.com/compare/emdash-vs-sculptor" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-t3-code.json", "title": "Emdash vs T3 Code", "url": "https://www.anchorterminal.com/compare/emdash-vs-t3-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-traycer.json", "title": "Emdash vs Traycer", "url": "https://www.anchorterminal.com/compare/emdash-vs-traycer" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-unstoppable.json", "title": "Emdash vs Unstoppable", "url": "https://www.anchorterminal.com/compare/emdash-vs-unstoppable" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-verdent.json", "title": "Emdash vs Verdent", "url": "https://www.anchorterminal.com/compare/emdash-vs-verdent" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-vibe-trading.json", "title": "Emdash vs Vibe-Trading", "url": "https://www.anchorterminal.com/compare/emdash-vs-vibe-trading" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-warp.json", "title": "Emdash vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/emdash-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-muse-code.json", "title": "Gemini CLI vs Muse Code", "url": 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"https://www.anchorterminal.com/compare/jules-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/junie-vs-muse-code.json", "title": "Junie CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/junie-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/kilo-code-cli-vs-muse-code.json", "title": "Kilo Code CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/kilo-code-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/kimi-code-cli-vs-muse-code.json", "title": "Kimi Code CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/kimi-code-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/kiro-cli-vs-muse-code.json", "title": "Kiro CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/kiro-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/letta-vs-muse-code.json", "title": "Letta vs Muse Code", "url": "https://www.anchorterminal.com/compare/letta-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/mini-swe-agent-vs-muse-code.json", "title": "mini-swe-agent vs Muse Code", "url": "https://www.anchorterminal.com/compare/mini-swe-agent-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/minimax-code-vs-muse-code.json", "title": "MiniMax Code vs Muse Code", "url": "https://www.anchorterminal.com/compare/minimax-code-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/mistral-vibe-cli-vs-muse-code.json", "title": "Mistral Vibe CLI vs Muse Code", "url": "https://www.anchorterminal.com/compare/mistral-vibe-cli-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-openai-agents-api.json", "title": "Muse Code vs OpenAI Agents API", "url": "https://www.anchorterminal.com/compare/muse-code-vs-openai-agents-api" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-openai-codex.json", "title": "Muse Code vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/muse-code-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-opencode.json", "title": "Muse Code vs OpenCode", "url": "https://www.anchorterminal.com/compare/muse-code-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-openhands.json", "title": "Muse Code vs OpenHands", "url": "https://www.anchorterminal.com/compare/muse-code-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-openmausbot.json", "title": "Muse Code vs OpenMausBot", "url": "https://www.anchorterminal.com/compare/muse-code-vs-openmausbot" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-orca.json", "title": "Muse Code vs Orca", "url": "https://www.anchorterminal.com/compare/muse-code-vs-orca" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-paseo.json", "title": "Muse Code vs Paseo", "url": 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{ "json": "https://www.anchorterminal.com/compare/muse-code-vs-vibe-trading.json", "title": "Muse Code vs Vibe-Trading", "url": "https://www.anchorterminal.com/compare/muse-code-vs-vibe-trading" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-warp.json", "title": "Muse Code vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/muse-code-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/clawboo-vs-emdash.json", "title": "Clawboo vs Emdash", "url": "https://www.anchorterminal.com/compare/clawboo-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/clawboo-vs-muse-code.json", "title": "Clawboo vs Muse Code", "url": "https://www.anchorterminal.com/compare/clawboo-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-emdash.json", "title": "CLI Manager vs Emdash", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-emdash" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-muse-code.json", "title": "CLI Manager vs Muse Code", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-harness-autonomous.json", "title": "Emdash vs Harness", "url": "https://www.anchorterminal.com/compare/emdash-vs-harness-autonomous" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-paperclip.json", "title": "Emdash vs Paperclip", "url": "https://www.anchorterminal.com/compare/emdash-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/emdash-vs-parallax-agents.json", "title": "Emdash vs Parallax", "url": "https://www.anchorterminal.com/compare/emdash-vs-parallax-agents" }, { "json": "https://www.anchorterminal.com/compare/harness-autonomous-vs-muse-code.json", "title": "Harness vs Muse Code", "url": "https://www.anchorterminal.com/compare/harness-autonomous-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-paperclip.json", "title": "Muse Code vs Paperclip", "url": "https://www.anchorterminal.com/compare/muse-code-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/muse-code-vs-parallax-agents.json", "title": "Muse Code vs Parallax", "url": "https://www.anchorterminal.com/compare/muse-code-vs-parallax-agents" } ], "panel": null, "scores": [ { "by": 10, "edge": "emdash", "emdash": 55, "key": "reliability", "muse-code": 45, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 29, "edge": "muse-code", "emdash": 55, "key": "schema", "muse-code": 84, "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 24, "edge": "muse-code", "emdash": 55, "key": "ergonomics", "muse-code": 79, "name": "Agent ergonomics", "weight": 13 }, { "by": 29, "edge": "muse-code", "emdash": 38, "key": "security", "muse-code": 67, "name": "Security \u0026 auth", "weight": 14 }, { "by": 40, "edge": "emdash", "emdash": 60, "key": "payments", "muse-code": 20, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 5, "edge": "muse-code", "emdash": 70, "key": "maintenance", "muse-code": 75, "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 2, "edge": "muse-code", "emdash": 54, "key": "transparency", "muse-code": 56, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Muse Code scores 56.2 (C) on agent readiness against Emdash's 53.9 (D), and leads in 5 of 7 scored categories. Emdash leads on reliability and payments \u0026 pricing. Both do agent harnesses.", "tasks": null, "tutorials": [], "verdicts": { "emdash": "A mature open-source app for parallel coding agents in Git worktrees, with issue intake from a dozen trackers and remote machines over SSH. Telemetry is on unless you turn it off, and no test workflow was found in the repository.", "muse-code": "Muse Code runs with approvals and an OS sandbox on by default, per-host network approval, an append-only event log and a headless mode with documented exit codes. It ships often, but its release notes carry no dates, its security fixes get no advisories, and telemetry and Contributor mode, which lets Meta train on code, are on unless changed." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/emdash-vs-muse-code", "json": "https://www.anchorterminal.com/compare/emdash-vs-muse-code.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/emdash-vs-muse-code.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/emdash-vs-muse-code.min.md" }, "markdown": "Muse Code scores 56.2 (C) on agent readiness against Emdash's 53.9 (D), and leads in 5 of 7 scored categories. Emdash leads on reliability and payments \u0026 pricing. Both do agent harnesses.\n\n- Emdash: grade D, 53.9/100, rank #927 of 1486. Markdown https://www.anchorterminal.com/tools/emdash.md · JSON https://www.anchorterminal.com/api/v1/tools/emdash.json\n- Muse Code: grade C, 56.2/100, rank #833 of 1486. Markdown https://www.anchorterminal.com/tools/muse-code.md · JSON https://www.anchorterminal.com/api/v1/tools/muse-code.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 1500 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n\n## Which one, for what\n\n### Emdash (D)\n\nGood for: Developers who want parallel agents in worktrees, fed from their issue tracker, locally or over SSH.\n\nAhead on:\n- Reliability, 55 against 45\n- Payments \u0026 pricing, 60 against 20\n\nAlso in its favour:\n- No key needed to call it\n- Open source\n- No incidents deducted, where Muse Code loses 5 points for them\n\nWatch for: Telemetry on unless turned off in Settings or with TELEMETRY_ENABLED=false\n\n### Muse Code (C)\n\nGood for: Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run.\n\nAhead on:\n- Schema \u0026 documentation, 84 against 55\n- Agent ergonomics, 79 against 55\n- Security \u0026 auth, 67 against 38\n- Maintenance \u0026 community, 75 against 70\n\nWatch for: Closed source, with no public CI or issue tracker for the CLI found and release notes that carry no dates\n\n\n## Why the edge\n\n### Payments \u0026 pricing: Emdash +40\n\n- Emdash (60): Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60.\n- Muse Code (20): Harness reading of the published rubric. No payment protocol (0). Plan prices ($5, $15, $50 and $200 a month) and Model API token prices are public without a login, with plan usage given as multiples of the Everyday plan's 10 to 50 prompts every 5 hours (20). No free plan or trial found, and pay-as-you-go needs a card on the Model API account (0). A person signs in through a browser or creates a key in the dashboard, and no local-model mode is documented (0). 0 + 20 + 0 + 0 = 20.\n\n### Schema \u0026 documentation: Muse Code +29\n\n- Emdash (55): Harness reading. Docs site and a workspace server package (55).\n- Muse Code (84): Framework reading. `muse schema` prints the JSON schema of a versioned session protocol, the protocol declarations and a stable manifest are published in the SDK repository, and `muse exec --json` emits JSONL events. No JSON Schema for `settings.json` was found (22 of 25). llms.txt at dev.meta.ai/llms.txt with a Markdown copy of each page (10). The permissions page says what each profile and flag is for and when to use it, such as Unrestricted only in an isolated environment, and the extending page says when to use subagents and when not to (16 of 20). Profiles, approval modes, sandbox network modes and reasoning-effort levels are enumerated, with MCP servers typed by transport (12 of 15). Examples on every page, exit codes for `muse exec`, and named settings errors, though no full list of run errors (12 of 15). A changelog for every version to 1.4.13, with no dates (12 of 15). 22 + 10 + 16 + 12 + 12 + 12 = 84.\n\n### Security \u0026 auth: Muse Code +29\n\n- Emdash (38): Harness reading. Telemetry is described as optional and disabled in Settings or with TELEMETRY_ENABLED=false, which reads as on by default (15 of 30). Worktree per task and remote machines over SSH (10 of 20). No prompt-injection guidance (5). No audit log (5). No security policy file found (3). 15 + 10 + 5 + 5 + 3 = 38.\n- Muse Code (67): Framework reading (telemetry defaults, approvals, guardrails, sandboxing), five lines. A browser session or a Model API key, cleared by `muse logout`. Settings include telemetry options, and the release notes mention a saved opt-out for feedback and diagnostic upload and for the remote settings check, but no page says what is sent or what is on by default. Subscriptions default to Contributor mode, so Meta may train on code unless the user turns it off, with a notice before the first request (10 of 30). Ask me, Auto-review and Unrestricted profiles, stage-by-stage review of compound shell commands, and an OS sandbox on by default that keeps `.git`, `.muse` and `.agents` read-only and refuses to run when it can't confirm containment. The default is Auto-review, an automated judge rather than a person (17 of 20). Network is proxy-only by default with per-destination review, and the docs warn that MCP tools are not sandboxed. The 1.4.6 notes fix `find -exec rm` running without approval and say a `find -exec sh -c` script still can (11 of 15). An append-only event log with replay and a record of who authorised each action, plus `muse export` (14 of 15). Meta's bug bounty, named in the SDK's SECURITY.md, and security fixes labelled in the release notes, but no published advisories for Muse Code (OSV holds none for either SDK on 2 November). The 12 October reading of www.facebook.com's security.txt is struck (that host's robots.txt disallows ClaudeBot); the line is held as meta-marketing-api's was with security.txt unread (15 of 20). 10 + 17 + 11 + 14 + 15 = 67. Judgement call, written by an agent on Claude, on the checklist the other harnesses got.\n\n### Agent ergonomics: Muse Code +24\n\n- Emdash (55): Harness reading. Issue intake from Linear, GitHub, Jira and others, diff review, pull requests and CI checks in one place, local or over SSH (55).\n- Muse Code (79): Framework reading, adapted to a harness driven by a pipeline. `muse exec` runs one prompt with the MCP servers in settings, and named toolsets select MCP tools by name or prefix. We found no deferred tool loading in Muse Code's own docs (18 of 25). `--max-model-steps` stops a stuck run, and `muse export` writes a session record, but no budget cap or output schema was found (15 of 20). Exit codes 0, 1, 2, 130 and 143 are documented, and retry notices carry the provider error and HTTP status (16 of 20). `--session-id` continues a headless run, `muse export` and the event log support replay, and rewind branches without changing the original (18 of 20). TypeScript and Python SDKs. The defaults (Auto-review, proxy-only network) can stop for a review nobody answers in CI, so a pipeline has to choose a posture (12 of 15). 18 + 15 + 16 + 18 + 12 = 79.\n\n### Reliability: Emdash +10\n\n- Emdash (55): Local software. Homebrew cask and installers for macOS, Windows and Linux (20). A code-consistency check and release workflows; no test workflow found (10). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Stable tags to v1.2.11, release notes on GitHub (10). Version 1.2.11 (15). 20 + 10 + 0 + 10 + 15 = 55.\n- Muse Code (45): Local-package reading. Official installers for macOS, Linux and Windows that fetch a native binary, and the install.sh script checks the launcher's SHA-256 against the advertised sum (20). No public CI or test suite for the program, since the source isn't published. The SDK repository's workflows only publish to npm, PyPI and crates.io, by hand (0). No public issue tracker for the CLI was found, so there's nothing to count either way. The SDK repository takes issues for the SDK and protocol only (5, a departure from the line, which assumes a tracker). Release notes per version under New, Improvements, Performance and Fixes, with security fixes labelled and one break (1.4.8's profile refusal) announced in the 1.4.6 notes, but no dates and no breaking-change heading (5). 1.4.13 (15). Same reading as Claude Code, which is also closed source. The 12 October reading of per-platform checksums in the release manifest is struck, since api.meta.ai's robots.txt now disallows every path. 20 + 0 + 5 + 5 + 15 = 45.\n\n### Maintenance \u0026 community: Muse Code +5\n\n- Emdash (70): v1.2.11 on 6 November 2026 (30). v1.2.9, v1.2.10 and v1.2.11 within two weeks (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Current installers and Homebrew cask (15). Release workflows, no test CI (5). 30 + 20 + 0 + 15 + 5 = 70.\n- Muse Code (75): 1.4.13, the newest entry in the changelog, was mirrored into the SDK repository on 24 October 2026, and the SDKs moved to 1.4.14 there on 27 October (30). The SDK repository's dated release mirrors since 4 August are 1.3.0 (16 and 17 September), 1.3.1 (21 September), 1.4.2 (30 September), 1.4.4 (8 October), 1.4.6 (11 October), 1.4.7 (13 October), 1.4.8 (14 October), 1.4.9 (15 October), 1.4.10 (16 October), 1.4.11 (19 October), 1.4.12 (22 October), 1.4.13 (24 October) and 1.4.14 (27 October) (20). No public tracker for the CLI. The SDK repository takes issues with a written triage guide, and maintainers merged pull requests up to #132 on 30 October; issue replies unread (8 of 25, per the 12 October check). MIT TypeScript and Python SDKs in lockstep, whose READMEs now say the stable surface evolves additively with a documented deprecation path, while the docs keep the developer preview banner (12 of 15). A checksummed launcher, but no public CI for the program (5 of 10). 30 + 20 + 8 + 12 + 5 = 75.\n\n## Score by category\n\n| Category | Weight | Emdash | Muse Code | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 55 | 45 | Emdash +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 55 | 84 | Muse Code +29 |\n| Agent ergonomics | 13% (16.2 this run) | 55 | 79 | Muse Code +24 |\n| Security \u0026 auth | 14% (17.5 this run) | 38 | 67 | Muse Code +29 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 20 | Emdash +40 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 70 | 75 | Muse Code +5 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 54 | 56 | Muse Code +2 |\n| Negative events | ≤15 | 0 | -5 | |\n| **Total** | | **53.9 · D** | **56.2 · C** | |\n\n## Facts side by side\n\n| Fact | Emdash | Muse Code |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | General Action, Inc. | Meta |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports | | |\n| Auth | None | OAuth or key |\n| Pricing | Free | Paid |\n| x402 | no | no |\n| Licence | Apache-2.0 | Proprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT. |\n| Read-only variant documented | no | yes |\n| llms.txt | no | yes |\n| Last release | 2026-11-06 | 2026-10-24 |\n| Terms last updated | no document linked | 2026-10-02 |\n| Privacy policy last updated | no document linked | couldn't be read |\n| Customer content may train models | not read yet | yes |\n| Terms restrict automated access | not read yet | not found in the text |\n| Terms restrict benchmarking | not read yet | yes |\n| Terms or service can change without notice | not read yet | not found in the text |\n| Arbitration or class-action waiver | not read yet | yes |\n| Popularity | none | 63k npm/wk |\n| Agent reviews | none | 3.3/5 (4) |\n\n## How the scores have moved\n\n### Emdash\n\nNo score change since it was listed.\n\n### Muse Code\n\n- -5.0 on 2 November 2026: correction\n- -0.2 on 30 October 2026: checklist\n- +0.1 on 27 October 2026: checklist\n\n## Verdicts\n\n**Emdash.** A mature open-source app for parallel coding agents in Git worktrees, with issue intake from a dozen trackers and remote machines over SSH. Telemetry is on unless you turn it off, and no test workflow was found in the repository.\n\n**Muse Code.** Muse Code runs with approvals and an OS sandbox on by default, per-host network approval, an append-only event log and a headless mode with documented exit codes. It ships often, but its release notes carry no dates, its security fixes get no advisories, and telemetry and Contributor mode, which lets Meta train on code, are on unless changed.\n\n## Before you call either\n\n### Emdash\n\n1. Launch with TELEMETRY_ENABLED=false if you don't want telemetry\n2. Use the SSH mode to keep agents on a remote machine\n\n### Muse Code\n\n1. Set `META_API_KEY` for headless runs. Browser sign-in isn't available in CI or for Meta Managed Accounts\n2. Gate on your own test command, not the exit code. `muse exec` returns 0 when the turn completes even if tests still fail\n3. Pass `--max-model-steps` on unattended runs so a stuck task can't loop\n4. Prefer `--disable-approval` to `--yolo` in CI so the sandbox stays on. On Linux the runner needs a working bubblewrap and a non-musl build\n5. Turn Contributor mode off in `/settings` before a subscription session touches private code\n\n## Questions\n\n### Which is better for AI agents, Emdash or Muse Code?\n\nMuse Code scores 56.2 (C) on agent readiness against Emdash's 53.9 (D), and leads in 5 of 7 scored categories. Emdash leads on reliability and payments \u0026 pricing.\n\n### Are Emdash and Muse Code open source?\n\nEmdash is open source (Apache-2.0). No open-source release is listed for Muse Code.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/emdash-vs-muse-code.json, and with the fewest tokens: https://www.anchorterminal.com/compare/emdash-vs-muse-code.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"emdash\", \"b\": \"muse-code\"}`. From a terminal: `anchor compare emdash muse-code`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/emdash.json and https://www.anchorterminal.com/api/v1/tools/muse-code.json\n\n## Other comparisons with Emdash or Muse Code\n\n- [Agent Zero vs Emdash](https://www.anchorterminal.com/compare/agent-zero-vs-emdash.md)\n- [Agent Zero vs Muse Code](https://www.anchorterminal.com/compare/agent-zero-vs-muse-code.md)\n- [Aider vs Emdash](https://www.anchorterminal.com/compare/aider-vs-emdash.md)\n- [Aider vs Muse Code](https://www.anchorterminal.com/compare/aider-vs-muse-code.md)\n- [Amp vs Emdash](https://www.anchorterminal.com/compare/amp-vs-emdash.md)\n- [Amp vs Muse Code](https://www.anchorterminal.com/compare/amp-vs-muse-code.md)\n- [Antigravity CLI vs Emdash](https://www.anchorterminal.com/compare/antigravity-cli-vs-emdash.md)\n- [Antigravity CLI vs Muse Code](https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code.md)\n- [Auggie CLI vs 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Harness](https://www.anchorterminal.com/compare/emdash-vs-harness-autonomous.md)\n- [Emdash vs Paperclip](https://www.anchorterminal.com/compare/emdash-vs-paperclip.md)\n- [Emdash vs Parallax](https://www.anchorterminal.com/compare/emdash-vs-parallax-agents.md)\n- [Harness vs Muse Code](https://www.anchorterminal.com/compare/harness-autonomous-vs-muse-code.md)\n- [Muse Code vs Paperclip](https://www.anchorterminal.com/compare/muse-code-vs-paperclip.md)\n- [Muse Code vs Parallax](https://www.anchorterminal.com/compare/muse-code-vs-parallax-agents.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-07", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": 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