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LangChainCustomer feedback

A user praises LangChain's new feature for capturing 'stop_reason', stating it saves a significant amount of debugging time when analyzing agent traces with Braintrust.

What happened

Post: "LangChain September release adds delegated access"

Source

RedditSep 24, 2026By u/harmonic_bloom

r/LangChain

LangChain September release adds delegated access

upvotes
4
comments
2

Extracted from these lines

  • [comment u/ZealousidealBet3573] Capturing stop_reason is a small thing that can save a stupid amount of debugging time.

  • [comment u/ZealousidealBet3573] We look at agent traces in Braintrust and there’s a big difference between knowing where a run stopped and knowing why it stopped there.

reddit.com/r/LangChain/comments/1woqlek/langchain_september_release_a...Open the source

Comments on the post

1 of 2 comments
  • “Capturing stop_reason is a small thing that can save a stupid amount of debugging time. We look at agent traces in Braintrust and there’s a big difference between knowing where a run stopped and knowing why it stopped there. I’d love to see that reason stay easy to query too, because patterns like interruption vs error across a few hundred runs are where this gets really handy.”

    u/ZealousidealBet35731 points · Sep 24, 2026View

Extracted by Autobound

From the Signal API record
Signal
Customer feedback

What this signalsUser posts often show product pain before it reaches reviews or churn.

Subreddit
r/LangChain

Companies

  • BraintrustAlso named

The full record

From the Signal API record

Numbers

Mentions
7

Details

Timing
Ongoing state
Category
Features
Link URL
i.redd.it
Virality
Very low
Post kind
Image
Prominence
Aside
Company's role
Vendor

Topics and mentions

Topics

  • debugging
  • developer tools
  • ai agents
  • observability

Flair

  • Discussion

Extraction

Sentiment
Positive
Detected
Sep 24, 2026
signal_type
reddit-company
signal_subtype
customerFeedback

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The API returns more than this page shows

This page shows a preview. The full reddit-company record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/65631b9f-003a-5464-ab60-4f058ab01a90 returns this record as JSON. POST /v1/companies/enrich returns every signal for langchain.com.

{
  "signal_id": "65631b9f-003a-5464-ab60-4f058ab01a90",
  "signal_type": "reddit-company",
  "signal_subtype": "customerFeedback",
  "detected_at": "2026-09-24T03:15:38+00:00",
  "company": {
    "name": "LangChain",
    "domain": "langchain.com"
  },
  "data": {
    "nsfw": false,
    "stage": "none",
    "awards": 0,
    "timing": "ongoing_state",
    "topics": [
      "debugging",
      "developer tools",
      "ai agents",
      "observability"
    ],
    "post_id": "1woqlek",
    "summary": "A user praises LangChain's new feature for capturing 'stop_reason', stating it saves a significant amount of debugging time when analyzing agent traces with Braintrust.",
    "category": "features",
    "comments": [
      {
        "url": "https://www.reddit.com/r/LangChain/comments/1woqlek/comment/pbskglz/",
        "depth": 0,
        "score": 1,
        "author": "ZealousidealBet3573",
        "excerpt": "Capturing stop_reason is a small thing that can save a stupid amount of debugging time. We look at agent traces in Braintrust and there’s a big difference between knowing where a run stopped and knowing why it stopped there. I’d love to see that reason stay easy to query too, because patterns like interruption vs error across a few hundred runs are where this gets really handy.",
        "posted_at": "2026-09-24T16:14:35.000Z",
        "author_url": "https://www.reddit.com/user/ZealousidealBet3573/"
      }
    ],
    "evidence": [
      "[comment u/ZealousidealBet3573] Capturing stop_reason is a small thing that can save a stupid amount of debugging time.",
      "[comment u/ZealousidealBet3573] We look at agent traces in Braintrust and there’s a big difference between knowing where a run stopped and knowing why it stopped there."
    ],
    "link_url": "https://i.redd.it/aiztzkqwxdrh1.png",
    "virality": "very_low",
    "image_url": "https://i.redd.it/aiztzkqwxdrh1.png",
    "post_date": "2026-09-24T03:15:38.000Z",
    "post_kind": "image",
    "sentiment": "positive",
    "subreddit": "LangChain",
    "post_flair": [
      "Discussion"
    ],
    "post_title": "LangChain September release adds delegated access",
    "prominence": "aside",
    "source_url": "https://www.reddit.com/r/LangChain/comments/1woqlek/langchain_september_release_adds_delegated_access/",
    "entity_role": "vendor",
    "post_author": "harmonic_bloom",
    "upvote_ratio": 1,
    "mention_count": 7,
    "mention_surge": true,
    "subreddit_url": "https://www.reddit.com/r/LangChain/",
    "total_upvotes": 4,
    "comments_total": 2,
    "total_comments": 2,
    "other_companies": [
      {
        "name": "Braintrust",
        "role": "partner",
        "domain": "braintrust.dev"
      }
    ],
    "post_author_url": "https://www.reddit.com/user/harmonic_bloom/",
    "signal_category": "feedback",
    "comments_included": 1
  }
}

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