* fix(agentic): surface a failed agentic follow-up call instead of the pre-loop tool call
* fix(agentic): surface failed follow-ups from the OpenAI chat dispatcher and update pinned integration tests
* fix(agentic): end a capped agentic turn on chat and responses instead of a retried 500
* fix(openai): run agentic hooks after the first call's error handling so a follow-up error keeps its own type and message
* fix(agentic loop): end capped turns on every chat path and bill the first call when a follow-up fails
A turn refused at max_agentic_loops now drops the internal tool calls of every hook that claims calls in it, while a call the client declared survives. The hosted_vllm and openai chat paths now carry the loop depth, fingerprints and max_agentic_loops into the follow-up, so they stop at the cap instead of looping forever.
A failed follow-up call now records the first call's usage and cost on the request's failure log before the error reaches the client. A code interpreter sandbox that is missing or fails becomes the tool call's output for the model to handle, so the turn completes without a retry.
On native streaming /v1/messages a hook or follow-up failure now reaches the client as an Anthropic error event with the mapped type, and compresr declares its retrieve tool so the stream holds it back. Comments and docstrings the branch added against the repo rule are removed
* fix(agentic loop): bill retried attempts and clean up what failed or capped turns return
The router's retry loop now carries each failed attempt's paid first call into the request's billing, so a request whose follow-up keeps failing bills every first call on its failure row, and one that recovers bills the failed attempt's first call on its success row. A failure row no longer adds unpriced estimated tokens on top of attempts that were billed, so its tokens match its spend
A sandbox failure now answers the model with a fixed sentence and marks the code_interpreter_call as failed, without the sandbox's error text. Code interpreter on /v1/responses with Claude now runs its loop, because the bridged inner call no longer strips the hook's own markers
Dropped internal tool calls leave the kept calls numbered from 0, also on a replayed stream. A capped native /v1/messages stream now says the loop hit its limit and that max_agentic_loops raises it, instead of asking the client to retry
The agentic refusal and hook error logs no longer include the model or the exception text, and the agentic loop helpers take typed messages, params, and read-only fingerprints
* fix(agentic loop): keep a recovered retry's cost breakdown on the response it returns
A retried agentic request that recovers no longer adds the failed attempt's first call to its success row. The proxy keeps the follow-up's own row for that request id, so the added spend never showed up in the stored row, and that duplicate row is tracked separately. When every attempt fails, the failure row still bills each attempt's first call
Pricing a first call for the failure row no longer replaces the request's cost breakdown. Before, a recovered retry answered with x-litellm-response-cost-original, -input, and -output from the failed attempt's first call. Now its headers and logged breakdown match a request that succeeds on its first try
* fix(agentic): stop retrying a request whose agentic follow-up failed and bill every round it served
An error raised by an agentic follow-up after the first call was served now carries a typed mark, so the
router's retry loops, the mid-stream retry, and litellm's num_retries wrapper raise it as is instead of
rerunning the whole request. A failure of the first call itself still retries, and fallbacks still run.
The failure row bills every round the loop served before the failure, at any depth, and a later attempt
that succeeds bills what the failed attempts paid on its success row, with the cost breakdown and the
response cost headers adding up. The error response's x-litellm-response-cost reports the same amount
its failure row bills. Failure rows outside agentic hooks keep the prompt-token estimate they had before.
A refused tool call now matches by id among the refused ids, or by name among refused calls that carry
no id, so a name-only refusal next to an id refusal is no longer kept.
* fix(code_interpreter): delete a session sandbox whose code run failed so the next call starts a fresh one
* fix(code_interpreter): delete only the session sandbox that failed, never its replacement
* test(code_interpreter): type the session sandbox test helpers
* fix(proxy): report what a failed agentic follow-up's failure row bills on /v1/messages errors
* fix(agentic): keep the no-retry mark through error mapping and bill only failed follow-ups on success
An agentic loop error that is not a provider error, such as the streaming chat cap or a crash in a hook's
plan build, now keeps its no-retry mark when litellm maps it to an APIConnectionError, so the router no
longer reruns every paid round. The mark is stored on the exception, so a built-in error can carry it too.
A crash in a hook's plan build on /v1/messages and /v1/responses bills the first call on its failure row.
A recovered attempt adds a failed attempt's usage to its success row only when that attempt was a failed
agentic follow-up. Other failed attempts, such as a dropped stream, log their own row as on main.
A code interpreter sandbox that fails while running the code now says the code may have run but its
result is lost, instead of saying the code did not run.
* test(responses): bill a retried MCP request each attempt on its own row again
Round 4 stopped adding a non-agentic failed attempt to the success row, so this test goes back to main's assertions: the success row bills only its own rounds and the failed attempt's first round stays on its own failure row
* fix(spend): name a failed follow-up attempt the success record already bills
With the usage meter on, a failed agentic follow-up attempt gets its own charge-eligible record, and the request's success record also carries that attempt's usage and cost once the success row bills it. The success record now lists the attempt's record ids in included_attempt_ids, so a reader can tell the success record already covers it. Nothing changes when the meter is off
* fix(spend): count a billed failed follow-up's tokens on the success row
* fix(spend): bill a failed follow-up on a fallback served from cache
* fix(spend): show a billed failed follow-up in a cached fallback's cost breakdown
* fix(spend): keep a failed follow-up's billing state off the request-merged call details
* fix(spend): record the cost breakdown of a successful agentic follow-up
The chat agentic loop returned the follow-up response with the cost its own internal call had already stamped, so the request's logging reused that cost and never recorded cost_breakdown on the spend row. The loop now drops that stamped cost unless the follow-up was served from the cache, and the request prices the response itself
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Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
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