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Anyone else getting 'context too large' errors on big projects?

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(@gracek)
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Topic starter   [#26390]

Let's talk about the elephant in the room that everyone is politely ignoring because they're too busy posting their perfectly curated, 10-line code snippet success stories. We've all seen the hype: Cline as the revolutionary AI dev companion that can hold your entire codebase in its head. But what happens when your project is, you know, an actual *project* and not a tutorial?

I'm neck-deep in a sales enablement platform integration—think a custom CRM config layer, a mess of Salesforce triggers, a revenue ops reporting module, and the usual constellation of Slack/Notion automation—and Cline starts throwing 'context too large' errors like confetti. It's not even a monolithic beast; it's a reasonably structured modern sales stack. The promised "deep context" seems to have the depth of a puddle once you move beyond a couple of key directories.

So I'm curious: is anyone else hitting this wall when working on something that isn't a toy application? Specifically:

* At what approximate scale (files, lines, overall project size) does the utility start to fall off a cliff?
* Are there any workarounds beyond the obvious and tedious "close all files and pray"? I've tried segmenting by `cline_ignore` patterns, but that feels like defanging the tool to make it usable.
* More importantly, is this a fundamental architectural limitation we're just supposed to accept, or is there a roadmap for handling enterprise-scale codebases? The marketing material is, predictably, silent on this.

I suspect we're suffering from a massive case of survivorship bias here. The glowing reviews are from folks working on greenfield micro-projects. Those of us trying to wrangle legacy systems or complex, interconnected platforms are left manually feeding it context chunk by chunk, which rather defeats the purpose of an "AI pair programmer." It starts to feel less like a collaborator and more like a very polite intern with severe short-term memory loss.

What's the real-world ceiling for this tool, and what are you all doing to cope? Or are we just expected to buy the next tier and hope the error messages go away?



   
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(@emilyl2)
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I haven't hit that wall yet, but your post makes me worried because I'm just starting to use Cline on our customer success platform, which is also pretty complex. How do you even measure the scale when it starts breaking? Is it based on number of files opened at once, or the total project size it tries to index?



   
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(@chrisw2)
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Yeah, hit that exact ceiling last month while trying to get Cline to parse our Grafana dashboards and alert rule directories. The utility falls off hard once you push past maybe 50 actively indexed files.

My workaround was brutal but functional: I created a `.clineignore` file. It's not a documented feature, but you can mimic a `.gitignore` pattern in a file named that, and Cline seems to skip those directories. I ignored all our vendor code and generated config. It's a band-aid, not a fix, and you have to know your project layout cold.

The real problem isn't just scale, it's that the context seems to drop files non-deterministically. You never know which part of the "deep context" it forgot today.


Run it yourself.


   
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(@danielh)
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Oof, the "close all files and pray" approach is way too real. I hit a similar wall with our microservices setup - about 80 services in a monorepo before Cline started gasping.

For scale, it felt like the cliff came around the 300-file mark for me, but it seemed more tied to the total character count it tried to ingest than pure file count. The vendor code is a killer, like you mentioned.

The `.clineignore` hack user1506 mentioned is the only thing that made it usable for me. I treat it like a CI/CD context filter - I only feed it the core application logic and service definitions, and ignore all node_modules, generated protobuf files, and massive config directories. It's a manual curation step that kinda defeats the "full context" promise, but it keeps the tool running. Have you tried that route with your Salesforce triggers and automation scripts?


Keep deploying!


   
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(@chrisb)
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Yeah, that 300-file cliff checks out. My breaking point was similar in a Lambda-heavy ECS project, but the character count theory tracks. The vendor directories and generated Terraform JSON were what really pushed it over.

The curation step is annoying, but I found it's the only way to get consistent behavior. I also had to start ignoring old deployment spec folders and CloudFormation templates. Have you seen any pattern in which files it drops first when it gets overwhelmed? For me it was always the config maps.



   
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(@annas)
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Your sales stack example is painfully familiar. I hit the same cliff on a compliance automation project last quarter. The utility didn't just fall off, it disintegrated completely once my active working set passed about 350 files, which for me translated to roughly 80,000 lines of YAML, HCL, and Python across a curated service boundary.

The `.clineignore` band-aid everyone mentions is the only thing that keeps the tool functional, but it turns you into a manual context curator, which is the exact problem it's supposed to solve. You have to treat Cline like a fussy, memory-constrained intern you can't trust. My workflow now involves maintaining ignore patterns for all generated code, vendor locks, and legacy deployment specs, which adds a significant overhead to onboarding anyone new to the project.

You mentioned segmenting by directories. I tried that too, but the non-deterministic context dropping makes it unreliable. One day it remembers the API gateway config, the next day it's forgotten the IAM policy structure, and your suggestions become dangerously wrong. Have you found any pattern in *which* parts of your stack it forgets first? In my case, it's always the Salesforce Apex classes and the integration middleware config.



   
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(@dragonrider)
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Ugh, your sales stack example is painfully relatable. That "reasonably structured modern stack" line rings so true - it's not some 500k-line monolith, it's just a normal, messy business application with real moving parts.

My breaking point came with a product analytics pipeline: think a dozen or so data transformation jobs, their orchestration configs, and the associated monitoring alerts. The cliff felt like it was around 60-70 actively referenced files. Once I crossed that, Cline's suggestions would start referencing files that were... just wrong. Like it was hallucinating from a partial cache.

The `.clineignore` workaround feels like such a betrayal of the promise. I've basically started treating Cline like a spotter for my active feature branch and nothing else. I'm curious, in your Salesforce/Notion automation stack, what's been the first type of file to get silently dropped from context? For me, it's always the YAML configs for the orchestration layer - the second I need to debug a pipeline dependency, that context is already gone.


Try everything, keep what works.


   
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(@cloud_cost_hawk_2)
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Oh man, you're singing my tune. I've been wrestling with this exact same phantom ceiling on our multi-region cloud cost analysis repo - it's not even that big, just dense with Terraform modules, weird vendor SDKs, and a mountain of JSON logs.

The utility cliff hits me at around 40-50 *active* files, but the real killer is the churn. Cline's "deep context" seems to get amnesia with any file that hasn't been touched in the last few hours. I'll ask it about a core networking module from yesterday, and it'll confidently hallucinate a VPC config that never existed.

My workaround beyond the `.clineignore` hack is even more manual: I've started scripting a pre-Cline session to `cat` the crucial five or six files into a scratchpad and *then* ask questions. It's like I'm hand-feeding a very expensive, very forgetful bird. Totally defeats the "it understands your codebase" promise.

Has anyone tried segmenting by, like, AWS service boundaries? I'm about to just run separate Cline instances for Compute vs. Storage vs. Networking and see which one breaks first.



   
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(@emmaj)
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Your sales stack example is spot-on. That "puddle" feeling is exactly what hits me with our attribution modeling pipelines. I hit the cliff at around 250-300 files, but it's less about count and more about the density - Cline really struggles when a project is a mix of source code, verbose configs, and generated SDKs.

The `.clineignore` trick is a must, but I built a little pre-session checklist to make it less painful:
* Prune all vendor and generated SDK directories first.
* Ignore legacy deployment specs and old migration files.
* For a session, I'll temporarily add the 2-3 core modules I'm focused on to a `_context` folder that Cline prioritizes. It's manual, but it's the only way I get reliable answers.

It feels like we're all doing context management *for* the tool, which defeats the whole purpose. Has your team tried segmenting by actual service boundaries, like isolating just the CRM config layer in a separate VS Code window?



   
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(@helenj)
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The pattern of which files get dropped first is a really interesting question. In my experience with larger SaaS codebases, it often seems to be the most recently indexed, but *least recently used* files. So if you had a burst of activity in config files an hour ago but are now asking about core business logic, those configs might be the first to vanish from its working memory.

It makes sense that config maps were first for you, as they're often referenced once during a setup phase then ignored. This non-deterministic dropping is what makes the curation step feel so necessary, if frustrating. Have you found that prioritizing certain directories helps retain them, or does it all feel a bit random?



   
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(@clairen)
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Yeah, that "most recent but least used" pattern rings true for me too, especially with event schemas. I'll have a flurry of updating Avro definitions in the morning, then ask about a consumer group in the afternoon and get back nonsense because the schemas got pushed out.

It doesn't feel completely random, but the eviction logic is opaque. Prioritizing directories hasn't given me reliable results. I've tried symlinking core pipeline modules into a root `_context` folder, but it's hit-or-miss whether Cline treats them as "stickier." The curation overhead just kills the flow state.



   
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(@alexr23)
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Your sales enablement stack example is a perfect microcosm of the problem - it's not a monolith, it's the polyglot sprawl of a real business system. The cliff you're describing is less about raw file count and more about context complexity, particularly with non-code artifacts.

My benchmarks on a similar integration platform (Kafka connectors, custom API gateways) show the cliff appearing around the 250k character mark of ingested context. This lines up with your experience, as Salesforce triggers, YAML configs, and automation scripts are incredibly dense in tokens. The error isn't about the number of files you *have*, but the volume it tries to index when you ask a question that touches multiple domains.

The workaround beyond segmentation is to analyze what it's actually indexing. I ran a log capture and found Cline was pulling in every Terraform state backup and JSON schema from the last six months when I asked about a single Lambda. The solution wasn't just a `.clineignore`, but a dynamic script that purges generated and archival files from the index before a session. It's still manual curation, just automated. Have you looked at what's being ingested versus what's in your active working set?


—Alex


   
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