rfp agent browser automation failed on sam.gov login captcha

rfp agent browser automation failed on sam.gov login captcha: how to fix it

When an agent hits a sam.gov login CAPTCHA, the right move is to stop and hand off to a human, never to defeat the challenge. Detect the CAPTCHA, pause the run, and notify the operator to complete login manually. CAPTCHAs exist to block automation, and working around them violates the site terms.

rfp agent browser automation failed on sam.gov login captcha

When to use this skill

• Agent automation stops at a sam.gov CAPTCHA
• Login flows need a human verification step

When not to use this skill

• You want the agent to bypass the CAPTCHA (not supported, use the handoff)
• No CAPTCHA appears (a different login issue)

Tool compatibility

Agent browser automation with human-in-the-loop handoff. Related area: browser automation and web scraping. Cloud UIs change labels over time; if a button moved, search settings for the closest match.

Before you start

• Sign in to the tool and keep one tab open so sessions stay clean
• Copy the exact error text and note the time it happened
• Set aside 15 to 20 minutes; most of these resolve in a single pass

Quick diagnosis

Make sure this is the right skill before you invest the 15 minutes.

• If you are dealing with agent automation stops at a sam.gov CAPTCHA, start at step 1 below.
• If instead you want the agent to bypass the CAPTCHA (not supported, use the handoff), stop here; you need a different skill.
• If neither quite matches, compare your screen against the verbatim error block at the top; that block is exactly what this skill covers.

Fix it in steps

1. Detect the CAPTCHA explicitly

Add a check for the CAPTCHA element right after the login page loads.

Expected: the agent recognizes the challenge instead of failing mysteriously.

2. Pause and notify a human

Stop the run safely and alert the operator that manual login is needed.

Expected: a clear handoff message with the run state saved.

3. Human completes the login

The operator solves the CAPTCHA and completes login in the agent browser session.

Expected: an authenticated session the agent can continue with.

4. Resume the automation

The agent picks up from the saved state with the live session.

Expected: the flow completes.

Confirm each step worked

Run through this checklist before moving on. If a check fails, redo that step instead of pushing ahead.

• Step 1 (detect the captcha explicitly): Expected: the agent recognizes the challenge instead of failing mysteriously.
• Step 2 (pause and notify a human): Expected: a clear handoff message with the run state saved.
• Step 3 (human completes the login): Expected: an authenticated session the agent can continue with.
• Step 4 (resume the automation): Expected: the flow completes.

Quick recap

1. Detect the CAPTCHA explicitly
2. Pause and notify a human
3. Human completes the login
4. Resume the automation

Still stuck?

Gather three things: the exact error text, the time it happened, and what changed just before it broke. Check the vendor status page for an active incident. Then open a support ticket with those three things; it cuts the back-and-forth in half. For agent runs, attach the last 50 lines of the agent log too, since the loop or timeout signature in the log usually names the cause.

Variant phrasings

sam.gov captcha blocking agent

Hand off to a human, that is the legitimate path. If this matches what you saw, the steps above apply as written.

agent stuck on login captcha

Detect, pause, notify, resume after manual login. If this matches what you saw, the steps above apply as written.

Why it happens

CAPTCHAs are deliberate automation barriers on government login flows. An agent has no legitimate way past one, so the correct design treats the challenge as a handoff trigger rather than an obstacle to defeat.

Edge cases

• Never use CAPTCHA-solving services, they violate site terms
• Save run state before pausing so resume is clean
• Frequent CAPTCHAs may signal the automation is too aggressive, slow it down

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_WwFJU9Yutdzam5owRh74oA