Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/hoangsonww/forge-agentic-coding-cli/debug-loopnpx skills add hoangsonww/Forge-Agentic-Coding-CLI --skill debug-loopgit clone --depth 1 https://github.com/hoangsonww/Forge-Agentic-Coding-CLIWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00043 | $0.00398 |
| Opus 5 | $0.00022 | $0.00199 |
| Sonnet 5 | $0.00009 | $0.00080 |
| Haiku 4.5 | $0.00004 | $0.00040 |
Grade A, and why
debug-loop scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
The loop is the most expensive place to be wrong. Instrument before you change anything.
1. Reproduce deterministically
FORGE_LOG_LEVEL=debug ./bin/forge.js <command>
Capture the session id. Events land in
~/.config/forge/events/<session>.ndjson.
If the bug only reproduces against a real provider, pin the model and disable router fallback:
FORGE_MODEL=... FORGE_ROUTER_FALLBACK=0 ./bin/forge.js <command>
2. Read the event stream, not the terminal
Each turn emits: turn.start, model.call, tool.call,
tool.result, validation.result, turn.end. Missing or
out-of-order events are your bug.
3. Check the usual suspects, in order
- Mode caps (
src/core/mode-policy.ts) — is the agent hitting turn/token cap? - Validation gate (
src/core/validation.ts) — is a valid step being rejected? - Tool registry — is the requested tool actually registered?
tool.callwithclass: not_foundmeans no. - Permissions — silently denied?
tool.result.denied=true. - State machine (
src/persistence/tasks.ts) — illegal transition attempted?
4. Add a failing test before the fix
Template: test/unit/executor-loop.test.ts. Mock callModel. If the
test you add doesn't turn green after your fix, you fixed the wrong
thing.
5. Finish with verify.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 50 lines · 43 tokens per session scan A 03f16705b6ff
debug-loop is a skill published in the GitHub repository hoangsonww/Forge-Agentic-Coding-CLI (22 stars, last pushed 16d ago), licensed MIT. It adds 43 tokens to every session and 398 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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