A 3-step agent cost me $4.20. agenttrace showed me the O(n ) tool call hiding in plain sight.
A recent experience with a 3-step agent revealed unexpected costs due to inefficient tool calls. The author utilized agenttrace to analyze and optimize the process, reducing the cost significantly. The issue stemmed from the model's handling of input tokens, which led to excessive calls and increased expenses.
- ▪The initial cost for a 3-step agent was $4.20, which was much higher than expected.
- ▪Agenttrace helped identify that the cite-check step was making nine calls instead of one due to the way input tokens were handled.
- ▪After optimizing the process, the cost dropped to 14 cents, demonstrating a significant improvement in efficiency.
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/mukundakatta/a-3-step-agent-cost-me-420-agenttrace-showed-me-the-on-tool-call-hiding-in-plain-sight-3omp |
| Publication time | Thu, 21 May 2026 01:52:32 +0000 |
| Retrieval time | 2026-05-21T02:05:03.425Z |
| Last seen | 2026-05-21T02:05:03.425Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | NRwSlLU5Jhg7 |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3915555) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Mukunda Rao Katta Posted on May 21 A 3-step agent cost me $4.20. agenttrace showed me the O(n ) tool call hiding in plain sight. #hermesagent #ai #llm #observability I ran a small agent. Three steps. One web search, one summarize, one cite-check. I had budgeted maybe 12 cents. The bill at the end of the run was $4.20. I knew something was off but the per-call invoice line items were not telling me anything useful. They were just a list of messages.create calls.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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