stacklok/mecatl

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Open source agent harness, built from the ground up for cloud-native production workloads on infrastructure you control. Run the same provider-agnostic loop locally, remotely, or on Kubernetes, with durable state, permissions, and gRPC/HTTP-SSE APIs.

Stars: 152
Forks: 16
Open beginner issues: 1
Indexed issues: 206
Avg merge: 14h 48m
Merged PRs (30d): 536

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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206 open issues indexed

Document common mecatui delegation workflows Open

documentation

stacklok/mecatl#1718 · 1 assignee · Opened Sep 18, 2026
OpenAI Responses calls materialize invalid optional MCP arguments Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

stacklok/mecatl#1711 · Opened Sep 18, 2026
Model subprocesses can prompt on mecated's controlling terminal Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

stacklok/mecatl#1710 · Opened Sep 18, 2026
CallMcpWithQuery weakens target read-only, permission, and dispatch semantics Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

stacklok/mecatl#1709 · Opened Sep 18, 2026
mecatui: queued steer card implies Esc cancels the steer, but it cancels the run and falsely shows the steer as applied Open

bug tui

Difficulty 4/5 3-5 days Newbie friendliness 58/100

stacklok/mecatl#1708 · Opened Sep 18, 2026
Generate an OpenAPI-backed HTTP API reference Open

documentation

Difficulty 5/5 Over a week Newbie friendliness 38/100

stacklok/mecatl#1706 · Opened Sep 18, 2026
Expose session MCP inventory consistently in direct and broker modes Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

stacklok/mecatl#1699 · Opened Sep 18, 2026
mecatui: shared diagnostics log silently discards output when another instance holds the lock Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

stacklok/mecatl#1696 · Opened Sep 18, 2026
mecatui/mecated startup blocks up to 30s on a single unreachable MCP server Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

stacklok/mecatl#1695 · 1 comment · Opened Sep 18, 2026
SDK: sanitize malformed-success HTTP decoding causes Open

stacklok/mecatl#1694 · 1 assignee · Opened Sep 18, 2026
CLI-managed MCP server setup, without required env variables for credentials Open

config enhancement ux

Difficulty 5/5 Over a week Newbie friendliness 42/100

stacklok/mecatl#1685 · Opened Sep 17, 2026
Flaky test: lifetime-pipe watcher may not observe Close on Linux Open

flake

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

stacklok/mecatl#1683 · Opened Sep 17, 2026
Editor mode Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 65/100

stacklok/mecatl#1678 · 1 comment · Opened Sep 17, 2026
diagnostics: retain bounded structural summaries for successful and incomplete model streams Open

stacklok/mecatl#1676 · 1 assignee · Opened Sep 17, 2026
Tamper-evident tool-call records behind HookRunner / EventLog Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

stacklok/mecatl#1666 · 4 comments · Opened Sep 16, 2026
feat: Add Vertex AI provider for Claude models via Google ADC Open

Difficulty 4/5 3-5 days Newbie friendliness 72/100

stacklok/mecatl#1653 · 2 comments · Opened Sep 16, 2026
Shell mode Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

stacklok/mecatl#1641 · 2 comments · Opened Sep 16, 2026
Investigate incoherent output from some custom Chat Completions models Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

stacklok/mecatl#1639 · Opened Sep 16, 2026
mecatui: add Recover and continue to the sessions menu Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

stacklok/mecatl#1622 · Opened Sep 16, 2026
mecatui: distinguish saved session state from confirmed running activity Open

Difficulty 4/5 3-5 days Newbie friendliness 66/100

stacklok/mecatl#1621 · Opened Sep 16, 2026
mecatui: allow selecting and copying text from read-only session transcripts Open

Difficulty 4/5 3-5 days Newbie friendliness 65/100

stacklok/mecatl#1620 · Opened Sep 16, 2026
mecated: add a one-command `mecated mcp add <URL>` instead of hand-written settings.yaml Open

config devex enhancement

stacklok/mecatl#1613 · 1 assignee · Opened Sep 15, 2026
Give tool calls a user-visible rationale and carry it into permission asks Open

enhancement tui

Difficulty 5/5 Over a week Newbie friendliness 35/100

stacklok/mecatl#1612 · Opened Sep 15, 2026
bug(mecatui): assistant-response Markdown links are not terminal-clickable Open

Difficulty 3/5 1-2 days Newbie friendliness 74/100

stacklok/mecatl#1611 · Opened Sep 15, 2026
Security: confine model-facing Shell with a macOS Seatbelt boundary Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

stacklok/mecatl#1608 · Opened Sep 15, 2026
mecatui: hide session ID by default and expose it through /session during runs Open

stacklok/mecatl#1606 · 1 assignee · Opened Sep 15, 2026
Track managed delegation-fork lifecycle (ADR 0283) Open

stacklok/mecatl#1596 · 1 assignee · Opened Sep 15, 2026
feat(prompt): add configurable Mecatl commit co-author guidance Open

stacklok/mecatl#1595 · 1 assignee · Opened Sep 15, 2026
mecatui: no-op model/effort re-selection still recreates the session; switch predecessors pile up indistinguishably in the sessions browser Open

bug tui

Difficulty 4/5 3-5 days Newbie friendliness 52/100

stacklok/mecatl#1592 · Opened Sep 15, 2026
steer: drained mid-run steer is recorded with no model-visible framing, so the model abandons the in-flight task Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 58/100

stacklok/mecatl#1590 · Opened Sep 15, 2026
mecatui: converge bounded scrolling and selection controls Open

stacklok/mecatl#1589 · 1 assignee · Opened Sep 15, 2026
engine: failure-path session persistence races run-context cancellation, losing the snapshot that records the failure Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 72/100

stacklok/mecatl#1588 · 1 comment · Opened Sep 15, 2026
Structured Subagent responses appear accepted despite invalid payloads and cannot be inspected Open

Difficulty 4/5 3-5 days Newbie friendliness 50/100

stacklok/mecatl#1582 · Opened Sep 15, 2026
Parallel single-branch auto-merge requires a Git repository with at least one commit Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

stacklok/mecatl#1581 · Opened Sep 15, 2026
User-delegated agent authority tracker Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

stacklok/mecatl#1566 · Opened Sep 15, 2026
Keep protected user operations safe through broker replacement Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

stacklok/mecatl#1565 · Opened Sep 15, 2026
Use a connected external integration without exposing credentials to the agent Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

stacklok/mecatl#1564 · Opened Sep 15, 2026
Enforce user, agent, and exact-target authority for the first ToolHive integration Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

stacklok/mecatl#1563 · 1 comment · Opened Sep 15, 2026
Integrate the remote protected-operation broker on current main Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

stacklok/mecatl#1562 · Opened Sep 15, 2026
Plan mode can't move on to implementation in mecak8s Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

stacklok/mecatl#1547 · Opened Sep 15, 2026
mecak8s: isolate the unauthenticated drain endpoint from workload traffic Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

stacklok/mecatl#1523 · 1 comment · Opened Sep 14, 2026
redisstore: add application-level encryption for sensitive persisted data Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

stacklok/mecatl#1514 · Opened Sep 14, 2026
mecak8s: make Kubernetes Lease renewal capacity explicit and scalable Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

stacklok/mecatl#1515 · Opened Sep 14, 2026
mecak8s: bound and garbage-collect session Lease objects safely Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

stacklok/mecatl#1517 · Opened Sep 14, 2026
mecak8s chart: close invalid rendering states and scope local Redis resources Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 52/100

stacklok/mecatl#1519 · Opened Sep 14, 2026
mecak8s chart: close remaining production operational hardening gaps Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

stacklok/mecatl#1518 · Opened Sep 14, 2026
mecak8s: isolate Lease and scheduler domains between chart releases Open

enhancement kubernetes low priority security

Difficulty 4/5 3-5 days Newbie friendliness 45/100

stacklok/mecatl#1521 · 1 comment · Opened Sep 14, 2026
Chart / Sec Hardening Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

stacklok/mecatl#1513 · Opened Sep 14, 2026
Existing sessions hold a stale MCP tool surface: added servers invisible, removed servers linger Open

stacklok/mecatl#1511 · 1 assignee · Opened Sep 14, 2026
proposal: LLM-adjudicated auto mode for main-session permission asks Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

stacklok/mecatl#1502 · Opened Sep 14, 2026

stacklok/mecatl

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