subagent-watchdog-stall-on-ui-template-track SKILL.md skillA
subagent-watchdog-stall-on-ui-template-track from wan-huiyan/agent-traffic-control is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wan-huiyan/agent-traffic-control/subagent-watchdog-stall-on-ui-template-track@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wan-huiyan/agent-traffic-control
- Path
plugins/agent-traffic-control/skills/subagent-watchdog-stall-on-ui-template-track/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0.0, committed Jul 8, 2026
- First version recorded
- May 29, 2026
- Size
- 8,033 bytes
- Repository stars
- 3
- License
- MIT
Recognise the failure mode where a `general-purpose` (or similar) subagent dispatched to do UI/template-heavy work stalls and gets killed by the no-streamed-output watchdog (~600s of silence → terminate). Use when: (1) you dispatched a subagent for UI work (new page route + Jinja/template authoring + per-step iterative tests + small CSS), (2) the agent reports `failed: Agent stalled: no progress for 600s (stream watchdog did not recover)` with a partial result fragment like…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Subagent watchdog stall on UI/template tracks ## Problem You dispatched a `general-purpose` subagent (or any agent running in the background via the Agent tool) to write a new UI screen — a route + Jinja template + a few tests. The agent reads existing patterns, plans template structure, drafts the template, iterates on test failures... and stalls. You get: ``` status: failed summary: Agent "Phase C: Screen 03 live workspace" failed: Agent stalled: no progress for 600s (stream watchdog did not recover) result: "Now let me look at the routes I'll consume (render, bundle, upload) and existing templates." ``` The result fragment shows it was mid-investigation. The worktree may contain partial edits. ## Context / Trigger Conditions Recognise this trap when: - The dispatched task is UI/template-heavy. Specifically: lots of file reads (template patterns, view models, helpers) + Jinja/HTML/CSS authoring + iterative test-write → run → fix → repeat loops. - The agent's last reported output is "Now let me ..." or similar — i.e. a tool-call prefix, not a result. - Total elapsed time before stall is in the 10-15 minute range. …
Read the whole file at its exact version.
How to install
mdr add wan-huiyan/agent-traffic-control/subagent-watchdog-stall-on-ui-template-track@sha256:bbe6beba35429bc0The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_2yyaskcm3zf33gaa)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between May 29, 2026 and Jul 8, 2026, about one every 40 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-07-08 | f1254dd | 8,033 B | A | view · diff |
| v1.0.0 | 2026-05-29 | 059688a | 8,002 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8033 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
wan-huiyan/agent-traffic-control · 3 stars · license MIT · pushed 2026-09-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2yyaskcm3zf33gaa GET https://markdownregistry.com/api/v1/resolve?ref=wan-huiyan/agent-traffic-control/subagent-watchdog-stall-on-ui-template-track GET https://markdownregistry.com/api/v1/blob/bbe6beba35429bc0714e807e7f315b03555aac22bbf499b4add897834e430821
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.